live from london, this is bbc news. two us officials tell cbs news an israeli missile has struck iran. state television in iran has reported big explosions in the city of isfahan. these are live pictures from isfahan. iranian state tv says the city is safe. this is a live shot of tel aviv. iran's foreign minister warned of immediate response to any israeli attack. a warm welcome to the programme. i'm at mark labelle. breaking news this hour: state television in iran has reported big explosions near an army base and airport in the central city of isfahan, activating local air defence systems. blasts have also been reported in the country's northwest. video online shows iranian defence missiles being fired into the air. commercial flights have been diverting around iranian airspace. iranian media reports say that nuclear installations near isfahan are "totally secure". explosions have also been reported in southern syria from missiles apparently targeting radar sites; and in the iraqi capital baghdad, and babil province t