"Footage on Monday showed extensive damage to the Khatam al-Anbiya Central Headquarters building of the Iranian military in Tehran, following airstrikes as part of a joint US-Israeli operation. The Khatam al-Anbiya Headquarters is the joint co-ordination centre for the regular army and the Revolutionary Guard, and it also oversees the co-ordination of major military operations. Footage shows a black flag raised above the destroyed building, a sign of mourning after the assassination of the Supreme Leader, Ali Khamenei. Other footage showed bulldozers clearing rubble on a street in the Eshghyar Square area in eastern Tehran. The US and Israel attacked Iran on Saturday morning. Tehran said it was responding with strikes on Israel and US assets in the region, with strikes reported in countries right across the Gulf region. Donald Trump admitted that three US personnel were killed and that more deaths were 'likely'. Supreme Leader Ayatollah Ali Khamenei was confirmed dead in a strike on Saturday. It comes after a number of rounds of talks between the Americans and Iranians. "