President Donald Trump announced Saturday that many Iranian military leaders had been killed in a massive U.S. strike on Tehran. In a post on Truth Social, Trump wrote: "Many of Iran's Military Leaders, who have led them poorly and unwisely, are terminated, along with much else, with this massive strike in Tehran!" The post included grainy aerial video footage showing large nighttime explosions over the city.

The White House has not provided further details on the strike or the identities of those killed. A BBC report noted the video Trump shared appeared to be about 24 hours old, raising questions about its connection to the claimed operation. Iranian officials have not specifically addressed the Tehran strike but have issued broad warnings against escalation.

Trump's statement came amid heightened tensions in the ongoing U.S.-Iran conflict, which erupted more than a month ago after failed nuclear negotiations. The U.S. and Israel have conducted repeated strikes on Iranian military, energy, and industrial targets, including the Bushehr nuclear facility and petrochemical complexes in Khuzestan Province, where attacks killed five people and wounded 170 others. Iran has retaliated with missile barrages on Israel, Gulf states, and Iraq.

Compounding the military exchanges, a U.S. F-15 fighter jet was shot down over southern Iran on Friday. The pilot was rescued, but a weapons systems officer remains missing, prompting a joint U.S.-Iranian search effort complicated by reports of Iranian tribesmen firing on American helicopters. An A-10 Warthog supporting the rescue was damaged, though its pilot was recovered.

Trump reiterated a 48-hour ultimatum for Iran to reopen the Strait of Hormuz, through which 20% of global oil passes. Iran's effective blockade has driven U.S. gas prices to $4.10 per gallon, up 37% since the war began. "Time is running out - 48 hours before all Hell will reign down on them," Trump posted, urging a deal by Monday. Iranian Maj. Gen. Ali Abdollahi Aliabadi rejected the demand as "a helpless, nervous, unbalanced and stupid action" and warned that "the gates of hell will be opened upon you" if attacks persist.

The conflict has spread regionally, with over 1,400 deaths in Lebanon since early March and temporary closures of Syrian border crossings ahead of potential Israeli strikes. International monitors reported no radiation increase at Bushehr after strikes, despite an employee death there.