Clashes between Iraqi police and Shia militants in southern Iraq have left five people dead.
The police in the town of Samawa said the fighting broke out on Thursday with militiamen loyal to the Shia cleric Moqtada Sadr.
Also in southern Iraq, four Iraqi soldiers were killed by a roadside bomb near the town of Hilla.
In south Baghdad, a car bomb exploded on Thursday night, killing 15 people, including a group of wedding guests.
Three children were among the dead. About 27 people were injured, including the bride and groom.
The explosion occurred in front of a photo studio in Abu Dshir where the wedding party had gathered for pictures.
Lawless area
Several nearby shops and businesses were badly damaged in the blast.
Abu Dshir is a Shia enclave in Baghdad's lawless, mainly Sunni, neighborhood of Dora.
In other developments:
The execution was the first word of any trial concerning the killing of Ayatollah Mohammed Baqir al-Hakim, the leader of the Supreme Council for the Islamic Revolution in Iraq, and 84 others in Najaf
US and Iraqi forces are currently undertaking a major military operation in the Baghdad area aimed at curbing sectarian unrest.
Some 30,000 extra US troops have now been deployed to Iraq to try to reduce the violence.
Popular markets have been walled off, streets closed and the number of checkpoints has been stepped up in an attempt to thwart car bomb attacks.
PHOTO CAPTION
Boy in front of scene of bombing