A roadside bomb killed a U.S. soldier in eastern Baghdad, the U.S. military said on Thursday, bringing to eight the number of American troops killed in Iraq this week.
A military statement said the soldier was killed on Wednesday by an armor-piercing roadside bomb called an explosively formed projectile, or EFP.
U.S. officials say components of EFPs are made in neighboring Iran and supplied to Shiite militias fighting U.S. troops. Tehran denies the charge.
The latest death raises the number of U.S. troops killed in Iraq in June to 26, according to the independent Web site iCasualties.org, which tracks U.S. military casualties.
That is up from 19 American soldiers killed in May, the lowest monthly total since the 2003 invasion.
More than 4,100 U.S. troops have been killed in Iraq.