Iraq's largest Sunni Arab political bloc announced its withdrawal from the government Wednesday, undermining efforts to seek reconciliation among the country's rival factions, and two bombing attacks in Baghdad killed at least 67 people.
In one attack, 50 people were killed and 60 wounded when a suicide attacker exploded a fuel truck near a gas station in western Baghdad. Another 17 died in a separate car bomb attack in central Baghdad.
The U.S. military announced the deaths of four American soldiers, three of whom were killed by a sophisticated, armor-piercing bomb. Britain also announced the death of one of its soldiers, by a roadside bomb in Basra.
Related: The House is investigating Pat Tillman's friendly-fire death in Afghanistan. Specifically, they are looking at some inconsistencies in the official story (which took a while to come out anyway) and the punishments meted out to those involved.