Millions of pilgrims made their way on foot to the Iraqi city of Karbala on Saturday for the Shiite pilgrimage of Arbaeen, regarded as the largest annual public gathering in the world.
The commemoration marks the 40th day following the death of a Shiite saint in the 7th century and included more than 2 million Iranians and other Shiites from abroad.
Militias patrolled roads leading into the city and escorted Iranian pilgrims from the border, hiking up security for processions that have previously been targeted by Sunni militant groups with bloody bombings.
This year's Arbaeen ceremonies take place amid widespread anger in Iraq's Shiite south over the government's heavy crackdown on protests that erupted earlier this month against unemployment, corruption and government mismanagement.
The demonstrations raged across Iraq for seven days and most prominent among the protesters were young Shiites, unleashing their frustration with the Shiite-led government in Baghdad.
The security crackdown, which killed more than 100 and wounded thousands, put down the protests last week, but a new round of demonstrations has been called for October 25.
The political turmoil surfaced in the Arbaeen ceremonies. Followers of populist cleric Muqtada al-Sadr marched toward Karbala chanting, "No to America, no to Israel, no to corruption" and "Baghdad is free, corruption must go!"
In a message marking the day, Prime Minister Adel Abdul-Mahdi vowed to "confront with strength and determination all forms of corruption and achieve justice."
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