“Foreigners, in particular dual nationals of Iran and Western countries including the United States, continue to be detained or prevented from leaving Iran,” the statement said.
“US citizens traveling to Iran should very carefully weigh the risks of travel and consider postponing their travel,” the warning continues. “US citizens residing in Iran should closely follow media reports, monitor local conditions, and evaluate the risks of remaining in the country.”
“Iranian authorities have detained and harassed US citizens, particularly those of Iranian origin,” the statement reads. “Former Muslims who have converted to other religions, religious activists, and persons who encourage Muslims to convert are subject to arrest and prosecution.”
The department also expressed concern over the safety of commercial aircraft in the region due to ongoing conflicts.
“The US government is concerned about the risks to civil aircraft operating into, out of, within, or over Iran due to hazards from military activity associated with the conflicts in Iraq and Syria,” the warning states. “The FAA has advised US civil aviation to exercise caution when flying into, out of, within, or over the airspace over Iran.”
Perhaps most telling, however, is the notice that the US government may not be able to help if you are captured. The warning notes, “the US government’s ability to assist US citizens in Iran in the event of an emergency is extremely limited.”