Mourners in black began gathering on Tuesday for days of funerals and processions for Iran’s late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honouring the dead and projecting strength in an unsettled Middle East.

For Iran’s Shiite theocracy, mass demonstrations have been crucial since millions thronged the streets of Tehran to welcome Grand Ayatollah Ruhollah Khomeini in 1979 during the Islamic Revolution, and also attended his funeral 10 years later. An estimated 1 million turned out in 2020 for processions for the late Revolutionary Guard Gen. Qassem Soleimani, who was slain in a US drone strike in Baghdad.