The U.S. Department of State has advised U.S. citizens to leave Iran immediately following the partial reopening of the country’s airspace.

Axar.az reports, citing the US State Department, Iran’s airspace has been partially reopened as of April 21. However, U.S. citizens are instructed to depart Iran now, monitor local media for updates, and consult commercial carriers for available exit options.

The alert states that Americans may leave Iran via land routes through Armenia, Azerbaijan, Turkiye, and Turkmenistan. It also warns citizens against traveling to border areas with Afghanistan, Iraq, and Pakistan.

The State Department cautioned that the Iranian government may prevent U.S. citizens from leaving or impose exit fees. It also noted that dual U.S.-Iranian nationals are treated solely as Iranian citizens under Iranian law and may face questioning, arrest, or detention. Authorities may consider possession of a U.S. passport or ties to the United States sufficient grounds for detention.

For those unable to depart, the State Department recommends sheltering in place, remaining in residences or secure buildings, staying away from windows, and monitoring official guidance.

The United States has no diplomatic or consular presence in Iran. The Swiss government, through its embassy in Tehran, serves as the protecting power for U.S. interests, though its Foreign Interests Section is currently closed due to the security situation.