US president warns people to 'immediately 'evacuate Tehran

US President Donald Trump urged residents of Tehran to leave in a Truth Social post on Monday. 

Iran should have signed the “deal” I told them to sign. What a shame, and waste of human life. Simply stated, IRAN CAN NOT HAVE A NUCLEAR WEAPON. I said it over and over again! Everyone should immediately evacuate Tehran!

He did not provide further details. There are fears that the US might participate in Israel's war on Iran. 

Aircraft carrier USS Nimitz left Southeast Asia on Monday after canceling a Vietnam visit, as the Pentagon announced it was sending "additional capabilities" to the Middle East amid a ramp up of the Iran-Israel conflict. According to a ship-tracking site earlier today,  the carrier was traveling through the Malacca Strait toward the Indian Ocean.

Israel conducted unprovoked military strikes on Iran in the early hours of Friday morning, leading to hundreds of deaths and the bombing of multiple sites in Iran, with Iran then responding with retaliatory attacks on Israel. In the wave of mutual attacks, Israel has killed at least 224 civilians in Iran since the onset of the conflict. Iran has killed at least 24 people in its attacks on Israel.