Amid scenes of celebration and mourning, the formation of an interim government and ongoing bombings, Iran has entered a period of profound uncertainty, where the Islamic Republic's very survival and the reshaping of its internal balance of power are at stake.

“Khamenei, one of the most evil people in History, is dead,” Trump wrote in a social media post.

A senior Israeli official told Reuters that Iran's Supreme Leader Ayatollah Ali Khamenei was killed in Israeli and U.S. strikes.