The US state department issued a worldwide security advisory for American citizens, warning that heightened tensions in the Middle East could trigger “unforeseen escalation” and travel disruptions. The advisory also cautioned about potential threats to US interests overseas.

Americans worldwide have been urged to 'exercise increased caution' as 'unforeseen escalation' in the Middle East could see flights cancelled and citizens targeted

The State Department advises international travelers to check travel.state.gov for the latest advisories and embassy security updates.