U.S. urges citizens in Iran to leave immediately over security risks ahead of nuclear talks.

The U.S. has issued an urgent travel advisory urging American citizens in Iran to leave immediately due to escalating tensions ahead of nuclear talks in Oman, citing security risks, internet blackouts, flight cancellations, and potential detention—especially for dual nationals. The warning, emphasizing no U.S. government assistance is available, advises departing by land to Armenia or Türkiye if safe. The advisory coincides with a U.S. military buildup and strong rhetoric from officials, though no new escalation has been confirmed.