A suicide bomber on Friday killed at least 58 people in a town south of Baghdad, according to press reports. The bomber blew himself up near a vegetable market in Suwayra.
About 45 other people were wounded in the attack.
Earlier, a suicide car bomber blew up his vehicle near a bus taking policemen to work in the northern town of Tikrit on Friday, killing eight policemen and wounding 15, local police said, according to Reuters.
Elsewhere, Iraqi police Friday reported the finding of 14 blind-folded bodies in the Eastern part of the capital.
Meanwhile, no charges would be filed against a Marine who shot three wounded and unarmed Iraqi prisoners in a mosque in Fallujah during a major American military offensive there late last year.
One of the shootings was filmed by an NBC journalist. The footage shows an Iraqi prisoner slumped on the floor of the mosque. After yelling that the man was faking death, the Marine shoots him in the head.
But the 1st Marine Division said the Marine was acting in "self-defense" as troops had been warned that some Iraqi fighters were feigning death or injury and then attacking.