Three American soldiers were killed in bomb attack in south of Baghdad on Saturday, the U.S. military said in a statement on Sunday.
The soldiers were patrolling an area south of Baghdad when an improvised explosive-device hit their vehicle, said the statement.
Earlier in the day, the military said that one U.S. marine died Saturday of wounds which sustained due to enemy action while operating in the volatile Anbar province.
The names of the soldiers are being withheld pending notification of next of kin, the statement said.
More than 2,750 U.S. soldiers have been killed in Iraq since the U.S.-led invasion in March 2003, according to media count.
Source: Xinhua