Trump warns Iran not to retaliate after Ayatollah Ali Khamenei is killed March 1, 20264:00 AM ET By Jane Arraf , Willem Marx A person holds a picture of Iran's supreme leader Ayatollah Ali Khamenei, who was killed in joint US and Israeli strikes, as people mourn at a square in Tehran on March 1, 2026. Atta Kenare/ hide caption toggle caption Atta Kenare/ Iran's Supreme Leader Ayatollah Ali Khamenei, 86, was killed in a joint American-Israeli operation targeting Iran on Saturday, Iran's state media has confirmed. Obituaries Iran's Ayatollah Ali Khamenei is killed in Israeli strike, ending 36-year iron rule The Iranian government has announced 40 days of mourning.