Three bomb attacks have killed more than 35 Shia pilgrims and injured scores of others in areas south of the Iraqi capital Baghdad.
In the deadliest attack on Thursday, a bomber killed over 20 people and injured 40 others in Dura region.
At least eight people lost their lives and 32 others sustained injuries as another bomber blew up his explosives in Yusifiyah.
A third bomber killed at least eight and injured 18 others in Latifiyah.
Hundreds of thousands of people make pilgrimages to the holy city of Karbala in Iraq during the 40 days after the annual commemoration of the martyrdom of Imam Hussein (PBUH), the grandson of Prophet Muhammad (PBUH).
No group has claimed responsibility for the deadly attacks on Shia Muslim pilgrims, but systematic bombings are a favorite tactic of al-Qaeda-linked groups that according to Iraqi officials seek to destabilize the country.
On December 1, Iraq’s ministries of health and defense said that 948 people, including 852 civilians, 53 police officers and 43 soldiers, had been killed in violent attacks across the country in November.
The figures make November one of the deadliest months in 2013, with civilians accounting for about 90 percent of the fatalities.
The United Nations says at least 8,000 people have lost their lives in Iraq so far this year.