Trump’s plans on Iran matter to Putin because Tehran and the Kremlin have especially close ties that stretch back to the Soviet era. Iran sends drones to Russia that have been used in the war in Ukraine, while Moscow has supplied Iran with many of the weapons it has used to crush protests.

Iran and its militia allies say they will respond aggressively in the region if attacked. A U.S. aircraft carrier and warships are approaching the region.

Footage from a hospital in Tehran shows at least 31 bodies piled inside and seven body bags outside.

Iranian state media highlight U.S. unrest over protests against Immigration and Customs Enforcement (ICE).

President Trump has received multiple U.S. intelligence reports indicating that the Iranian government’s position is weakening, according to several people familiar with the information. The reports signal that the Iranian government’s hold on power is at its weakest point since the shah was overthrown in the 1979 revolution.

USS Abraham Lincoln strike group surges toward Persian Gulf as Trump masses armada against Iran's nuclear defiance and proxy strikes, igniting fears of open war.

Iran-US tensions LIVE: The US' military buildup comes as Iranian Supreme Leader Ayatollah Ali Khamenei has reportedly moved into a special underground shelter in Tehran due to fears of a potential US attack.

WASHINGTON, Jan 26 (Reuters) - The United States is "open for business" if Iran wishes to contact Washington, a U.S. official said on Monday, as the United States seeks to pressure Tehran over a government crackdown on protesters.