Iran war: US issues worldwide caution alert for Americans living abroad

The State Department has reissued a worldwide caution alert this week for Americans living abroad due to heightened tensions in the Middle East, with the potential for "unforeseen" escalation.

"Americans currently in the Middle East should exercise caution and heightened vigilance and should be prepared for possible flight cancellations, periodic airspace closures, and potential travel disruptions," the agency said.

"Americans outside the Middle East should reconsider travel to and through the region," it cautioned. The agency advised Americans to monitor embassy and consular security alerts, local authorities and the news for breaking developments. 

The State Department noted that U.S. diplomatic facilities, including those outside the Middle East, have been targeted. 

"Iran and groups supportive of Iran may target other U.S. interests overseas or at locations associated with the U.S. and Americans throughout the world," it warned.