A suicide bomber detonated his explosives near a truck transporting gas, causing a huge blast as worshippers were headed to a Shi'ite mosque for evening prayers.
Three separate suicide bombers in Baghdad targeted U.S. and Iraqi forces, killing at least 19 people.
A fourth suicide bomber in the town of Mahmoudiya, about 30 kilometers south of Baghdad, missed a U.S. military convoy but hit two minibuses. At least six civilians were killed.
The U.S. military said today that two American soldiers were killed in separate incidents yesterday.