Trump eyes on what the US does nextpublished at 19:32 British Summer Time 23 June
Sarah Smith
North America editor
Donald Trump is reportedly in the Situation Room with his top security officials for an already scheduled National Security Council meeting at this hour. The White House said that from there they are closely monitoring the progress of Iran's attack on al Udeid Air Base in Qatar.
The attack itself is not a complete surprise. The US has been braced for something like this happening since its attacks on Iran's nuclear facilities over the weekend. All of the US forces in the Middle East have been on high alert and ready for an attack like this to come.
And of course the US won't know for some time exactly what the scale of Iran's attack has been. But once they do get that information, Trump and his leading officials will need to decide how they are going to respond.
This is now a crucial moment, when we will see whether this conflict spirals into something larger, wider and more complex than the US had wanted, or whether it can be contained.
The US had hoped that they could get in with one surgical, tactical strike against Iran's nuclear facilities and leave it at that. But an Iranian response was inevitable. We're all waiting now to see now what it will provoke.