Iran had launched its own retaliatory missile volley on Friday night, killing at least three people in Israel. Air raid sirens sent Israelis into shelters as waves of missiles streaked across the sky and interceptors rose to meet them. US President Donald Trump has lauded Israel’s strikes and warned Iran of much worse to come.

By Alexander Cornwell, Parisa Hafezi and Steve Holland Iran's strikes against Israel will continue, with targets set to expand to include US bases in the region in the coming days, Iran's Fars news agency reported on Saturday,

Israel’s attack on Iran was long in the making – the result of years of meticulous planning by Israel and days of high-stakes talks between Tel Aviv and Washington, officials told CNN.

Israel's attack on Iran raises questions like whether the US will get involved, how Iran will respond, and if a wider conflict may be triggered.

Iran's supreme leader has criticized an initial proposal from the United States in negotiations over Tehran's rapidly advancing nuclear program, though he stopped short of entirely rejecting the idea of agreement with Washington.