Iran warned President Donald Trump on Sunday that Israeli and U.S. military bases in the region could be considered "legitimate targets," after Trump threatened to strike the nation if protestors challenging Iran's theocracy were killed
A rights group said credible reports show hundreds were killed since Iran cut off the internet. The Trump administration is mulling lethal and nonlethal military options.
At least 538 people have been killed in the anti-government across Iran, according to data published on Sunday by the Human Rights Activists News Agency.
The attack is the latest in a series of actions the Pentagon has taken after two U.S. service members and an interpreter were killed in Syria in December.
The United States launched another round of strikes against the Islamic State in Syria following an ambush last month that killed two soldiers and a civilian interpreter.