Iran had earlier said it planned to hold the three-day event in early Muharram, the first month of the Islamic calendar, which would have put in early June.

The mayor of Tehran said Thursday that the state funeral of late supreme leader Ali Khamenei, killed by US-Israeli strikes on the first day of the Middle East war, would be postponed until the end of June or early July.

Iran had earlier said it planned to hold the three-day event in early Muharram, the first month of the Islamic calendar, which would have put in early June.

But Mayor Alireza Zakani, in a statement carried by the Fars news agency, said the ceremony had been postponed until after the first 10 days of Muharram to allow the faithful to complete their annual mourning of the Imam Hussein, the revered early Shia leader who was slain at the battle of Karbala in 680 CE.

This would mean Khamenei's funeral would take place in the second 10 days of Muharram, between June 26 and July 5. Tehran officials have previously said they expect 20 million people to attend.Khamenei, who led the Islamic republic for nearly 37 years, was killed in his home in central Tehran on February 28. A state funeral initially planned for March 4 was postponed due to the war.