Middle East crisis live: Funeral procession for supreme leader Ali Khamenei begins in Iran

Iran began a six-day funeral procession for Supreme Leader Ali Khamenei in Tehran on July 6, with millions assembling to mourn the leader killed in February during U.S.-Israeli airstrikes. Khamenei, succeeded by his son Mojtaba, will be buried Thursday at the Imam Reza shrine in Mashhad. The procession has prompted calls for retaliation against the United States amid ongoing regional hostilities in Lebanon and Palestine.