Hundreds of thousands of Shia pilgrims are gathering in the Iraqi city of Karbala to celebrate Arbaeen, one of the holiest days in the Shia calendar.
The two-day festival concludes a 40-day mourning period to mark the death in 680 AD of Imam Hussein, a grandson of the Prophet Muhammad.
Huge crowds of Shias have been converging on the city, some 80km (50 miles) south of Baghdad, all week.
Some pilgrims have crawled along or used chains to whip their backs as a way of demonstrating their devotion.
Others have covered their faces with dirt as a sign of grief.
In recent days, dozens of Shia pilgrims have been killed in gun and bomb attacks across Iraq, and security is very tight in the city.
Pilgrims began holy rites on Friday at the city's Imam Hussein shrine. The festival reaches its climax on Saturday.