Iran marks the 23rd anniversary of the passing of the late founder of the Islamic Republic, Ayatollah Seyyed Rouhollah Khomeini, Press TV reports.
Iranians across the country and outside Iran have held mourning ceremonies to mark the departure of Imam Khomeini.
Meanwhile, a large number of people and officials are to attend a ceremony at Imam Khomeini's mausoleum in the south of the Iranian capital, Tehran.
Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei will address the gathering on Sunday.
Imam Khomeini’s grandson, Seyyed Hassan Khomeini, will also deliver a speech during the ceremony.
