The funeral procession for the 110 unknown martyrs began early Friday morning in front of the University of Tehran, with people carrying the remains through the streets of the capital.
The remains of the martyrs were recovered from former battlefields in Fakkeh, Sharhani, Shalamcheh, Majnoon Island, Mehran, east of the Tigris River, and Chilat.
In addition to the capital's ceremony, the remains of another 240 unidentified martyrs are being carried in funeral processions and laid to rest in various parts of the country.
Mourners and pilgrims gathered along Enqelab and Hafez streets of Tehran hours before the ceremony began. Mourning stations have been also set up along the route to serve the participants.
The martyrs' remains were placed on designated trucks and welcomed into the ceremony with military music.
People of different social strata have attended the funeral processions, signifying the Iranian people’s love for the martyrs.
Organizers announced that those unable to attend the funeral procession could visit the remains at the ‘Me'raj-e-Shohada’ site until 10 pm on Friday.
Iraq, under former dictator Saddam Hussein, invaded Iran on September 22, 1980, imposing a bitter eight-year war on its eastern neighbor.