Americans issued “worldwide” travel warning after Iran strikes

The U.S. State Department on Sunday issued a “worldwide caution” alert for Americans traveling abroad, after President Donald Trump announced the U.S. had struck three nuclear sites in Iran.

“The conflict between Israel and Iran has resulted in disruptions to travel and periodic closure of airspace across the Middle East,” the department said in a notice on its website on Sunday.

“There is the potential for demonstrations against U.S. citizens and interests abroad. The Department of State advises U.S. citizens worldwide to exercise increased caution.”

Global airlines were weighing how long to pause flights to the Middle East after the U.S. struck Iran, Reuters reported. Flights to destinations including Dubai, Doha and Riyadh have been cancelled in recent days.

Flight tracking website shows FlightRadar24 shows airlines were not flying above Iran, Iraq, Syria and Israel on Monday.

Meanwhile, the Department of Homeland Security issued a National Terrorism Advisory System Bulletin on Sunday, warning that the “ongoing Iran conflict is causing a heightened threat environment in the United States.”

This is a developing story. Updates to follow.