Iran's state media confirmed Sunday that the Islamic country's Supreme Leader Ayatollah Ali Khamenei, 86, was killed in U.S.-Israeli attacks on Saturday.

Iranian state television reported that Khamenei was at his compound in downtown Tehran when the initial attack began. Satellite photos from Airbus showed the site heavily bombed.

His death at his office “showed that he consistently stood among the people and at the forefront of his responsibilities, confronting what officials call global arrogance,” state TV said.

Iranian state television and the state-run IRNA news agency reported his death, without elaborating on a cause of death.

U.S. President Donald Trump had said earlier he’d been killed in a joint American-Israeli operation targeting Iran.

The Iranian government announced a 40-day mourning period after the report of the leader's death.