An American soldier was killed when his vehicle hit a roadside bomb in Baghdad, the military said in a statement on Monday.
"A Multi-National Division - Baghdad Soldier was killed at approximately 10:45 p.m. (1945 GMT) on Sunday when the vehicle he was riding in was struck by an improvised-explosive device north of Baghdad," the statement said.
Earlier, two U.S. marines were killed Sunday due to "enemy action" while operating in al-Anbar province, according to the U.S. military.
The names of the victims are being withheld pending notification of next of kin, the statement said.
Over 2,755 U.S. soldiers have been killed in Iraq since the U.S. -led invasion in March 2003, according to media count.
Source: Xinhua