State media reports say Iran has launched missiles at US air bases in Qatar and Iraq in response to strikes on its nuclear sites on Saturday.
Qatar confirmed the attack on the US-run AI base, calling it a flagrant violation and says it reserves the right to respond directly.
The country has temporarily closed its airspace and US and UK citizens have been advised to shelter in place.
In Washington, Donald Trump is attending a National Security Council meeting shortly after the White House earlier said he was simply raising a question and floating the idea of regime change in Iran.
It comes as Israel says that it is targeting Tehran with unprecedented force, including attacks on access routes to the nuclear site and the Evin prison.
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