Kuwait has closed its airspace after Iran announced new attacks on the gulf country, with officials saying some flights were being diverted to alternative airports.
Flights had been circling outside Kuwait for some time before the announcement, after it said its air defences were firing at aerial targets.
Kuwait International Airport took a direct hit from an Iranian strikes last week, with one person killed and dozens more wounded.
Bahrain separately sounded its missile alert sirens on Thursday, after Iran said it was attacking the US navy’s fifth fleet which is headquartered in the country.
And the US embassy in Jordan issued an alert, saying “reports indicate missiles, drones, or rockets are in Jordanian airspace.”