Dubai: The United States has issued a fresh security alert on Iran, telling American citizens not to travel there “for any reason” and urging those already in the country to leave immediately, citing a volatile regional security environment and the risk of sudden escalation across West Asia.
The alert, dated September 19 and released by the U.S. Virtual Embassy in Iran, does not change Iran’s existing Level 4 “Do Not Travel” rating — Washington’s highest warning — but restates it in sharper terms as tensions persist between the United States and Iran and as Iranian-backed Houthi forces continue attacks in Saudi Arabia.
“Do not travel to Iran for any reason. U.S. citizens should leave Iran now,” the mission said. It warned that the security picture remains complex and could deteriorate without notice, with possible flight cancellations, airspace closures and other travel disruptions. Americans in the region were told to stay alert and to watch developments at airports, airlines and land crossings.
Officials also cautioned that procedures at Iran’s land borders could change at short notice and that travellers should check the entry rules of any country they might try to enter. Dual U.S.-Iranian nationals remain at particular risk: Iranian authorities have long detained Americans, including dual citizens, on charges such as espionage, and the United States has no embassy in Tehran. Emergency consular help, when available, is handled through Switzerland as protecting power. Routine U.S. consular services in Iran have been unavailable since October 2025.
The alert pointed to Houthi attacks on Saudi Arabia, including civilian airports, as a further source of instability. “This military conflict has the potential to escalate rapidly,” it said. Washington also warned that Iran or groups aligned with Tehran could target U.S. diplomatic facilities, businesses and other interests, including outside the region.
Americans were advised to enrol in the State Department’s Smart Traveler Enrollment Program (STEP), follow official Iran consular alerts, avoid demonstrations and large gatherings, and keep a low profile at sites associated with the United States. The standing travel advisory continues to list terrorism, civil unrest, kidnapping, arbitrary arrest and wrongful detention as core risks.
The September 19 notice is the latest in a series of Iran-specific alerts this year. Iran has remained at Level 4 throughout 2026 amid the wider U.S.–Iran confrontation, periodic airspace restrictions, and earlier calls for U.S. citizens to depart. The newest language reflects concern that commercial travel and land exits could close quickly if fighting or retaliation spreads.