The funeral comes at a critical moment for Iran, turning the page of nearly four decades of Khamenei's rule and months after the latest round of mass nationwide protests against the Islamic Republic.

Iranians come out to see Ali Khamenei’s flag-draped coffin, and those of his family killed in a February 28 air strike.

Millions of mourners lined the streets of Tehran for the funeral procession of Iran's slain supreme leader, Ali Khamenei, in a powerful display of national unity following weeks…