Iraqi authorities say a bomb blast near a Shi'ite mosque in Baghdad has killed at least 10 people and wounded 30 others.
Authorities say a truck packed with explosives detonated as worshippers were leaving evening prayers on Monday in northern Baghdad.
The bombing came hours after US Secretary of State Condoleezza Rice and British Foreign Secretary Jack Straw completed two days of urgent meetings in Baghdad.
Both diplomats urged feuding Iraqi leaders to form a new unity government as soon as possible, after nearly four months of negotiations.
Meanwhile, the US military says five Marines were killed Sunday in al-Anbar province when their truck rolled over in a flash flood. Two other Marines and a Navy corpsman remained missing Monday.
Separately, the U.S. military says three Marines and a U.S. sailor died in combat operations Sunday in the same region.
And the Arabic television network Al-Jazeera broadcast a video today purportedly from an Iraqi militant group that has claimed responsiblity for downing a U.S. helicopter Saturday southwest of Baghdad.
The network said it could not authenticate the video, which apparently showed parts of the wreckage and the militant group's emblem.
The U.S. military says two U.S. helicopter pilots died in the crash and notes the aircraft went down due to possible hostile fire.