40 days of mourning have begun in Iran after state media confirmed the death of Supreme Leader Ali Khamenei. He was killed in US-Israeli strikes on Tehran as well as members of his family and other senior figures. Iran has warned of the “most devastating offensive operation” against US bases and Israel in retaliation. Thousands have gathered across the country to mourn Khamenei’s death, while other social media videos show people celebrating. #Iran #AyatollahAliKhamenei #Tehran #SupremeLeader #C4News