on tuesday, but was recorded last wednesday. the president is also calling for a unilateral ceasefire between israel and hamas. his comments are his most critical yet of mr netanyahu and a considerable shift in tone. here in washington, the wars in the middle east and ukraine took centre stage on tuesday at a high—level meeting here in washington between america and britain's top diplomats. uk foreign secretary lord cameron and us secretary of state antony blinken discussed support to ukraine, as well as the humanitarian situation in gaza. lord cameron's visit comes as the uk takes part in the biggest airdrop of aid into gaza since the israel—hamas war began. in all, nine nations, including the us, delivered critical supplies to the territory. lord cameron confirmed that uk arms sales to israel will not be suspended but that he still has concerns about humanitarian

access in gaza. mr blinken, meanwhile, said the us has not been given a date by israel for its threatened ground offensive into the city of rafah. the bbc asked the diplomats about last week's air strike that killed seven aid workers, and whether there'd be meaningful accountability concerning how israeli forces have conducted the war. we are looking very carefully at the conclusions of the investigation that israel conducted. we are asking questions about it, we are engaged with the israelis, we are engaged with humanitarian organisations, and we want to make sure that, again, the investigation produces real change. let me be clear, though, we continue to have grave concerns around the humanitarian access in gaza, both in the period that was assessed and subsequently. we have seen a welcome increase in trucks with,

as tony said, perhaps as many as 400 going in yesterday, the highest since 7 october and public commitments from israel to flood gaza with aid. the united nations says famine is imminent, and aid agencies say israel is not ensuring enough access for food, medicine and other needed humanitarian supplies. a deadly, mass famine in gaza would likely accelerate violence and ensure a long—term conflict, us defense secretary lloyd austin told a senate hearing on tuesday. our diplomatic correspondent, james landale, joined the royal air force flight delivering aid to gaza on tuesday and filed this report. at an airbase injordan, piles of humanitarian aid — stacked into individual pallets adorned with their own parachute, all of it bound for gaza. on the tarmac, 14 military aircraft getting ready for the largest coalition air drop since they began last

month, a special delivery to mark the end of ramadan. inside, pilots and crews from different nations being briefed on the operation, safety a key concern in the small airspace over gaza. outside, the raf plane is loaded, each palette containing flour, rice, sugar, beans, baby food, oil and water — the basics for a meal — this, the raf�*s sixth airdrop so far. it is not that much, but i tell you what — it's the effort that counts. as in, every little helps. i'm quite proud and privileged to be involved in this sort of mission. but is it enough? will it meet the needs of the people in gaza? the aircraft's carrying 12 of these pallets. now, each of them are about a tonne, so that means this entire payload is worth about one truck crossing a border on the ground. the aircrews here insist that, cumulatively, the air drops are beginning to have an impact.

this is a sustained effort. we've been here for three weeks now, and we're continually delivering the aid. the people of gaza are very grateful for the efforts that we're going to and we'll keep delivering and keep delivering until we can't give them any more. in the air, we fly the short distance to gaza, then we're over the drop zone. the pilots are satisfied no—one�*s below and the back ramp lowers. these airdrops are expensive and inadequate, a symbol of the failure to get aid in by other means. but, we're told, they're better than nothing and they are making a difference. 12 boxes out, all on target on the northern shore. these airdrops can be dangerous — people have been crushed in the stampede to get to the pallets — but there's little that can be done from the air. so, today, the skies over gaza were filled with parachutes. israel says more aid trucks are getting through, but how many is not clear.

this aid from the air will not fill the gap, but the aircrews involved hope — believe — that it is making a difference to so many facing famine on the ground. james landale, bbc news over gaza. talks between the uk and us also covered the war in ukraine. the two governments are providing kyiv with billions of dollars in military aid. but the pentagon has spent almost all the money budgeted for the war effort, and further funding is stalled in the us congress. us central command says it's sending guns and ammunition it seized from an iranian ship. the weaponry includes ak—47s, ammunition, and rocket—propelled grenades was allegedly on its way to the iran—backed houthis in yemen. diverting seized weapons like these are one way the us can help ukraine without funding from congress. for more on the uk—us talks on gaza and ukraine, here's our state department

correspondent, tom bateman. it was on march eight, that lord cameron had said he expected to get advice within days on whether or not israel had breached international humanitarian law in gaza. here we are a month later and there has still been no word on that. i asked lord cameron at the news conference whether or not there had been a decision by there had been a decision by the uk government. on that particular issue and in his answer he made a significant announcement because he said he had now reviewed the latest advice and that his decision was they would be no change to the export control regime when it came to military sales to israel. basically what that means is the uk will continue to sell arms to israel and that matches because there has been significant pressure growing on the uk government over its weapons trade with the

israelis, in light of the humanitarian situation on the ground in gaza. one caveat to thatis ground in gaza. one caveat to that is although it is clear from what lord cameron said, there has been a review that he has seen, that contains legal elements to it, this is a sort of policy based review and the decision is to continue to sell arms, the bar on that is whether there is a "clear risk that weapons could be misused". he said they still have grave concerns about the situation, given the humanitarian catastrophe on the ground, they said they would continue to review the situation. lord cameron was here because he said he had come to try to persuade us lawmakers to unblock military assistance to ukraine, basically meaning those republicans, particularly those republicans, particularly those loyal to donald trump who do not want to forward the $6 billion package for more weapons, us weapons, for

ukraine, so he said he was going to continue to have meetings about that on wednesday. i asked about some of the time he had come with and he said he had not come here to lecture but you try to persuade. let's get more on the aid debate from melinda haring, non—resident senior fellow at the atlantic council, who specialises in ukraine. thank you forjoining us this evening. we have had a lot today already about who lord cameron has been speaking to, trying to persuade and make the case for the us to grant more aid to the ukraine. we have not had so much about who he has not met with, notably, house speaker mikejohnson, who speaker mike johnson, who potentially speaker mikejohnson, who potentially has the power to bring the aid package to a vote. what you make of that? all eyes are on house speaker mikejohnson right now. he definitely has the power to put this bill on the floor. if you

put the ukraine bill on the floor, it passes. it is game over, and he is refusing to do it. congress came back in session today and we have seen that schedule and ukraine aid is not scheduled to be debated this week. i think markjohnson is trying to play the clock down so this week congress is focused — # and the rumour in town is that mikejohnson will find another mike johnson will find another issue mikejohnson will find another issue to delay the bill again and again animal this goes on the more difficult it will be to pass ukraine aid.- the more difficult it will be to pass ukraine aid. you talk about running _ to pass ukraine aid. you talk about running down - to pass ukraine aid. you talk about running down the - to pass ukraine aid. you talk. about running down the clock. is there a pathway to which you see this being accomplished during this administration and this congress?— during this administration and this congress? yes, i think the month of— this congress? yes, i think the month of april _ this congress? yes, i think the month of april and _ this congress? yes, i think the month of april and may - this congress? yes, i think the month of april and may are - this congress? yes, i think the | month of april and may are the most likely month when congress would pass ukraine aid. president zelensky over the weekend said that if this

assistance, american assistance, american assistance, does not pass congress, he and ukraine will lose the war. i don't think you can say it more clearly than that. we have already seen ammunition shortages, both 155 and 152 and not enough editors fence as well so it is a really critical time. there is a pathway forward, more than one way forward, and a mechanism called a discharge petition, meaning if the speaker does not allow a bill on the floor, 218 members of congress can sign a piece of paper and it will force that measure on the floor. we are 27 signatures short so if more republicans will come up and sign the petition or progressive democrats, ukraine aid will be on the floor of the house as soon as that happens. were talkin: soon as that happens. were talking just _ soon as that happens. were talking just now _ soon as that happens. were talking just now about - soon as that happens. were | talking just now about seized weapons from the houthis iran been given, help us understand what is ukraine need right now, cash or weapons? or what kinds

of weapons? d0 cash or weapons? or what kinds of weapons?— of weapons? do you mind if i say both- _ of weapons? do you mind if i say both. ukraine _ of weapons? do you mind if i say both. ukraine needs - say both. ukraine needs ammunition and air defence. they other two priorities but it also needs budget support to keep its railways going, its schools open, so that is why the bill, the bill, the senate bill is very important because it has ammunition, budget support and humanitarian support. ukraine needs all of the above. if support. ukraine needs all of the above-— support. ukraine needs all of the above. if congress cannot aet it the above. if congress cannot get it done — the above. if congress cannot get it done or _ the above. if congress cannot get it done or it _ the above. if congress cannot get it done or it would - the above. if congress cannot get it done or it would take i the above. if congress cannot get it done or it would take a | get it done or it would take a long time, can that europeans help fill the void? the europeans _ help fill the void? the europeans are - help fill the void? the europeans are filling i help fill the void? the i europeans are filling the help fill the void? tue: europeans are filling the void but it is not fast enough. the europeans promised to produce1 million shells now, and they did not meet the deadline. they produced a little over 300000 and the north koreans sent1 million shells. the ukrainians have a shortage of ammunition now, and only the united states can fill that shortage in the timeframe that it needs. [30 can fill that shortage in the timeframe that it needs. do you wor , timeframe that it needs. do you worry. given _ timeframe that it needs. do you

worry. given it— timeframe that it needs. do you worry, given it is _ timeframe that it needs. do you worry, given it is a _ worry, given it is a presidential election year, that there will be a pressure, that there will be a pressure, that it's only going to get harder to get this done, not easier, as each day passes? that is right, which is why april and may are of paramount necessary to pass the bill. after may, it will be very, very difficult given the political climate and the election and all of the things that donald trump is that about ukraine. an ukraine assistance, all of his lies, to pass the bill. that is why that lord cameron was here in washington today trying to advocate for what is a bipartisan issue. thank you so much forjoining us this evening. thank you so much for “oining us this eveningfi around the world and across the uk, this is bbc news. let's look at another story making news. the man who led the campaign against the post office in the wake of the horizon it scandal, alan bates, said the company was run by "thugs in suits" in 2010. he's been giving evidence

to the public inquiry into the scandal in london. hundreds of sub—postmasters were wrongly prosecuted of fraud due to the faulty software. the post office has previously apologised. zoe conway has more. alan bates may have reached national treasure status, but is still fighting for compensation. he said he has been offered one sixth of what he is fighting for. tim he is fighting for. i'm fighting _ he is fighting for. i'm fighting for _ he is fighting for. mt fighting for everyone's financial redress but also my own. i have no doubt that there is a bit of vindictiveness coming in from the department and the post office. the inquiry, which has lasted three years, is now in its final stages. at the end of may, it will hear from former chief executive paula vennells for the first time. on the campaign trail, presidentjoe biden and former president

donald trump are neck and neck in most of the seven swing states that could decide the november election. the candidates are continuing to make campaign stops with mr biden in wisconsin this week touting his economic policies and mr trump in pennsylvania and michigan, that's where bbc news chief presenter caitriona perry has been on the ground speaking to voters. motown music and motor city, for decades, detroit was booming but then came bankruptcy, light and decline. detroit is turning itself around with a low unemployment and falling inflation yet only one third of residents make a living wage. michigan is a key swing state, barack obama won comfortably here, donald trump flipped the state in 2016 by a margin ofjust over 10,000 voters, joe biden flipped it back, to win in 2020. both candidates have been trying to shore up the blue—collar

workers here, including those on strike with united auto workers union last year. help the middle — workers union last year. help the middle class! _ workers union last year. help the middle class! joe - workers union last year. help the middle class! joe biden l workers union last year. help l the middle class! joe biden has an endorsement _ the middle class! joe biden has an endorsement from - the middle class! joe biden has an endorsement from the - the middle class! joe biden has| an endorsement from the union but that does not mean an automatic blessing from the members. t automatic blessing from the members-— members. i feel depleted. i feel like there _ members. i feel depleted. i feel like there is _ members. i feel depleted. i feel like there is not - members. i feel depleted. i feel like there is not a - members. i feel depleted. i feel like there is not a solid | feel like there is not a solid choice for the working class. i don't feel like anyone represents our best interest and ifeel like represents our best interest and i feel like we are again in another situation we have to go to a ballot box and vote against somebody instead of voting for somebody. the republican _ voting for somebody. the republican party - voting for somebody. the republican party is - voting for somebody. the republican party is not the republican party is not the republican party is not the republican party anymore, it is a party— republican party anymore, it is a party of— republican party anymore, it is a party of trump. as far as the democratic— a party of trump. as far as the democratic party, being an american mexican, i have criticism _ american mexican, i have criticism towards the democratic party because of the lack of— democratic party because of the lack of movement on any immigration policy. i feel like my demographic has been taken advantage of and they think we automatically will vote for them _ automatically will vote for them. ., , automatically will vote for them. ., them. people are living paycheck _ them. people are living paycheck to _ them. people are living paycheck to paycheck i them. people are living l paycheck to paycheck and them. people are living - paycheck to paycheck and really having — paycheck to paycheck and really having hard _ paycheck to paycheck and really having hard times, _ paycheck to paycheck and really having hard times, interest- having hard times, interest rates — having hard times, interest rates are _ having hard times, interest rates are astronomical- having hard times, interest rates are astronomical and | having hard times, interest. rates are astronomical and it's hard _

rates are astronomical and it's hard to— rates are astronomical and it's hard to find _ rates are astronomical and it's hard to find good _ rates are astronomical and it's hard to find good jobs - rates are astronomical and it's hard to find good jobs and - rates are astronomical and it's hard to find good jobs and it's| hard to find good jobs and it's almost — hard to find good jobs and it's almost impossible _ hard to find good jobs and it's almost impossible for- hard to find good jobs and it's almost impossible for my- almost impossible for my generation— almost impossible for my generation to _ almost impossible for my generation to buy- almost impossible for my generation to buy a - almost impossible for myl generation to buy a house almost impossible for my. generation to buy a house let alone — generation to buy a house let alone a — generation to buy a house let alone a brand—new— generation to buy a house let alone a brand—new car. - generation to buy a house let alone a brand—new car. we . generation to buy a house let. alone a brand—new car. we wore work— alone a brand—new car. we wore work in — alone a brand—new car. we wore work in the — alone a brand—new car. we wore work in the auto _ alone a brand—new car. we wore work in the auto industry - alone a brand—new car. we wore work in the auto industry and - work in the auto industry and be real— work in the auto industry and be real the _ work in the auto industry and be real the fact _ work in the auto industry and be real the fact that - work in the auto industry and be real the fact that these i be real the fact that these cars— be real the fact that these cars are _ be real the fact that these cars are not _ be real the fact that these cars are not selling - be real the fact that these i cars are not selling because interest _ cars are not selling because interest rates _ cars are not selling because interest rates are _ cars are not selling because interest rates are so - cars are not selling because interest rates are so high. l interest rates are so high. this— interest rates are so high. this is— interest rates are so high. this is the _ interest rates are so high. this is the most _ interest rates are so high. this is the most heavily. this is the most heavily populated arabic state in the country— populated arabic state in the country will stop the administration's policy on what's _ administration's policy on what's going on in the middle east, — what's going on in the middle east, i— what's going on in the middle east, i mean, it will cost him michigan, _ east, i mean, it will cost him michigan, for sure.— east, i mean, it will cost him michigan, for sure. that issue has fuelled — michigan, for sure. that issue has fuelled the _ michigan, for sure. that issue has fuelled the uncommitted l has fuelled the uncommitted campaign, which the 100,000 refused to vote forjoe biden in the democratic primary here, so what could that mean come polling day? we so what could that mean come polling day?— polling day? we cannot let taxpaver— polling day? we cannot let taxpayer dollars _ polling day? we cannot let taxpayer dollars used - polling day? we cannot let taxpayer dollars used to i polling day? we cannot let - taxpayer dollars used to commit a genocide and ethnic cleansing of an entire group. we are asked to choose between bands or bonds so i believe there are going to be folks that are going to be folks that are going to be folks that are going to be, especially with the american muslim community, who will not be able to bring themselves to vote forjoe biden, nor can they vote for

donald trump. so i think there will be a large number of voters that will skip the top of the ticket.— of the ticket. but at this biden michigan - of the ticket. but at this | biden michigan campaign of the ticket. but at this - biden michigan campaign office, concerns about israel policy, economy or immigration are not deterring the team. the president _ deterring the team. the president chairs - deterring the team. the president chairs with . deterring the team. tte: president chairs with many deterring the team. tt2 president chairs with many of the folks who voted and committed on the primary, he shares the vision of a just and lasting peace in the middle east so as a campaign we are committed to having a dialogue with those folks who care about the same things just like the president of. the same things 'ust like the president of.— president of. talk alone will not cut it. _ president of. talk alone will not cut it, says _ president of. talk alone will not cut it, says the - president of. talk alone will not cut it, says the merit i president of. talk alone will not cut it, says the merit of| not cut it, says the merit of dearborn, the largest arab american majority city in the us. american ma'ority city in the us. �* ., , american ma'ority city in the us. i'm always advocating for a conversation _ us. i'm always advocating for a conversation but _ us. i'm always advocating for a conversation but to _ us. i'm always advocating for a conversation but to have - us. i'm always advocating for a conversation but to have a - conversation but to have a conversation but to have a conversation or to take a picture or video or to advertise some sort of campaign stop is nothing we are interested in at this time. i think you'll find many in the committee who are reluctant to sit with the president because for us what is unfolding is

than an election, it's an issue of morality and decency and humanity. that is what is on this ballot, come november stop i can win back support? i think some he can win back and some that are lost forever. for those who are lost, i don't know how you engage them again knowing you could have set a line in the sand months ago but it never happened. you could restrict military aid in preventing military bombs from killing our friends and family overseas and that didn't happen. for many of them, the vote is lost.— vote is lost. the community previously _ vote is lost. the community previously considered - vote is lost. the community previously considered to - vote is lost. the community previously considered to be | previously considered to be part of a democratic base can no longer be counted on. both parties wait to see what way they go. to donald trump, a third—party candidate, orjust third—party candidate, or just stay third—party candidate, orjust stay home, come november. joining me now is caitriona perry in detroit. caitriona, just how close is the race in michigan likely to be? it would be very close,

michelle and already is, all of the polling shows donald trump ahead ofjoe biden by margins varying up to 5%. one pole in the last month has them neck and neck but all the others has donald trump ahead, factor in the margin of error, that is a dead heat. this is truly a battleground state. when you look at that issue we saw from the voters around joe biden's approach to his israel policy, thatis approach to his israel policy, that is likely to have quite an impact, particularly in the detroit metro area, the city of dearborn, about ten miles from here, the biggest city in the us with the biggest arab majority in the us and the voters there, if you look at the numbers, the margins are so tight. joe biden won four years ago, majority of 154,000 voters. donald trump one with a margin ofjust10,000 voters, there are 50 or 60,000 arab americans here, 101,000 people who voted uncommitted, voted againstjoe biden in the

democratic primary and all of that put together makes that essentially a winning or losing issue. those in the arab community are very strong in what they wantjoe biden to do. they want him to call for a permanent ceasefire, they want him to stop sending arms to the israeli military. when is see language and there was a shift in tone from joe biden in the interview today saying he considered prime minister benjamin netanyahu to be making a mistake, that to the community here is just a mistake, that to the community here isjust more talk and what they looking for is action briefly, why is it so important to the overall election? it is important to the overall election because there are certain battleground states and the voters there will decide who wins in november. the race is so tight, the polling here, in michigan are very close but nationally they are as well. we already see both of the campaigns with an intense focus here in

michigan, the biden—harris campaign already has 30 campaign already has 30 campaign offices open and michigan says it will have 40 ( next month. if you judge these things in terms of how frequently a candidate comes, joe biden has been here twice, as has donald trump, and the voters are expecting that both of those candidates will come plenty more times between now and november. the ground again it matters, meeting voters matters, doing everything that we have seen in previous elections, that didn't seem 2020 because it was the pandemic, but voters here are expecting a lot of that. on paper, this should be a state thatis paper, this should be a state that is easy forjoe biden to win until donald trump won in 2016, no republican candidate had won for many decades, but thatis had won for many decades, but that is not what the polling is showing all the past two elections have shown. we wait to see what happens in november but it will be close and it looks like it will be close right across the country. thank ou ve right across the country. thank

you very much- _ let's turn to some important news around the world. banking giant hsbc is set to take a billion—dollar loss after agreeing to sell its argentinian business which has been plagued by an unstable exchange rate in recent years. the bank said it's selling hsbc argentina, which has over 3,000 employees, to a major private financial group in the south american country. in a landmark case in michigan, james and jennifer crumbley have each been sentenced to 10 to 15 years in prison. the parents of the teenager who killed four people at oxford high school in 2018, were jailed for failing to secure the gun and ignoring warning signs in their son's behaviour. it's the first case to charge and convict the parents�* of a school gunman. france and spain say they're beefing up security at champions league matches in the wake of social media threats by an islamic state— affiliated group. british police said they had a robust plan in response to reports of threats ahead of arsenal's match against bayern munich in london on tuesday night. the threats follow several deadly islamic state attacks

this year, including in iran and moscow. a group of older swiss women have won the first ever climate case victory in the european court of human rights. the women, mostly in their 70s, said that their age and gender made them particularly vulnerable to the effects of heatwaves linked to climate change. the bbc�*s imogen foulkes has more. this is a historic ruling. for the first time ever the european court has ruled there is a link between global warning and the protection of human rights. the more than 2000 older swiss women who brought the case had clear evidence that their health and their health particularly is vulnerable to climate change. they talked of heart attacks,

dehydration suffered during the increasing number of heatwaves that switzerland is experiencing. switzerland, although it has a reputation for having a pristine environment, is not on track to meet its paris accord, global accord climate change targets but neither are many other european countries. that is why this case could have a big ripple effect right across europe. other countries will be looking hard at this verdict because switzerland cannot appeal it. it is binding and it will have to show it is doing more to it tak global warming. —— to attack global warming. and, finally, king charles came face to face with his own portrait on the new british banknotes on tuesday. at buckingham palace, the king was presented with the first of the new £5, £10, £20 and £50 banknotes which will go into circulation injune. existing banknotes will continue to be used alongside the new notes.

stay with us here on bbc news. hello there. tuesday, unfortunately brought more stormy weather with it and coastal flooding with the high tides, as well as inland flooding. a brief ridge of high pressure is pushing that low pressure out the way, but the weather fronts are hot off the heels again off the atlantic with more rain to come through the day ahead. this is what we had on tuesday — 60 millimetres and more across beddgelert in north wales. many of the other wettest places seeing 30—40 millimetres of rain. and despite the showers having ease, the rain and the winds through the night and it turns chilly with a touch of frost, potentially a few areas first thing and some mist and fog in the south. already, temperatures are rising in the west ahead of the next band of rain that you may have seen there.

so wet through the morning rush across northern ireland, underneath this weather front. and as it comes in, it's introducing milder atlantic air. so it will turn misty and foggy over the hills as well as the fog first thing further east. once it sets in across scotland on and off through the day, early brightness and sunshine in the east replaced by that rain as it meanders its way eastwards through the day. you can see it does ease off a little bit in southern parts, but it's got a legacy of cloud left in its wake. so a mild day, where we see any breaks — perhaps 16 in northern ireland. but there's a met office warning for the west of scotland. again, another 40 millimetres, possibly more over the hills. further south, there'll be a steady spell of rain and lots of misty, murky weather over the hills. another pulse comes in through the evening overnight, particularly scotland and northern ireland. it tends to weaken as it pushes southwards, but all the cloud and the wind and the winds will be strong again today, perhaps not as strong as yesterday, but they hold the temperatures up through the night. and a fairly brisk wind will continue with us on thursday. maybe some mist murk first thing, particularly in the south under the remnants of this weather front.

but actually, once that clears out the way, we might see some brighter skies and sunshine coming through before the next pulse of rain starts to materialise across western parts again. but look at the temperatures on thursday. it's looking mild, in fact, warm in the strengthening april sunshine. and that milder, warmer atlantic air is with us through thursday and indeed friday to end the week, perhaps even start the weekend, but not for long because we get some colder air starting to dig in behind it. and you can see for the weekend or by the end of the weekend, it's a return to slightly cooler weather for most.

voice-over: this is bbc news. we will have the headlines for you at the top of the hour, which is straight after this programme. hello and welcome. this week, we're going behind the scenes on an extraordinary collaboration between cbs news, der spiegel and the insider. a car chase in florida may have provided the vital clue... - pull over! ..to a national. security mystery. this all connects to something that's become known as havana syndrome. and this investigation alleges

that the russians may have been involved. we'll speak to one of the journalists behind the investigation. and gmail celebrates its 20th anniversary this month. we'll get into if and how email fits in the future of how we communicate. but we're going to start with a story you may well have seen in the news, the investigation into the attack on the iranian journalist, pouria zeraati, in london. before we meet our guests, let's just go through what we know about this story. pouria zeraati was stabbed and hospitalised on friday. he's since been released. the police are now saying that two people attacked him and they were driven away by a third person. they all headed in the direction of heathrow. all three suspects, the police say, left the uk hours after the attack. now, the police haven't said anything about the possible

motive, though counterterrorism officers are involved in the investigation.