Three American soldiers were killed and four others injured in two attacks across Iraq, the U.S. military said on Wednesday.
Two soldiers were killed by an explosion during operations in the volatile province of Diyala on Tuesday, the military said in a statement.
Four more soldiers were wounded by the blast and evacuated to a coalition hospital for treatment, it added.
Diyala province, which stretches from the eastern edges of Baghdad to the Iranian border, has long been the hotbed of insurgency and sectarian violence since the U.S.-led invasion in 2003.
A third soldier was killed earlier on Wednesday while conducting military operations near Mosul City, 400 km north of Baghdad, another statement said.
"The soldier was mortally wounded by gunfire while providing security to a police transitional team training mission near an Iraqi police station," it added.
The latest deaths bring the number of U.S. soldiers who have been killed in Iraq to about 3,865 since the outbreak of the Iraqi war in 2003, according to media count based on Pentagon figures.