Security officials in Iraq say a car bomb has killed at least two people and wounded five in central Baghdad.
Monday's bombing happened in the capital's Karrada district.
Also in Baghdad, the U.S. military says an American soldier was killed in an attack on his patrol.
The military said the soldier was killed by small-arms fire on Sunday.
In other violence Sunday, bomb attacks killed at least nine people and wounded about 70.
Iraqi officials said a suicide truck bomber attacked a police checkpoint in the northern city of Kirkuk, killing three people. Another suicide truck bomber struck the northern city of Mosul, killing two people.
A roadside bomb blast hit a minibus in eastern Iraq's Diyala province, killing three people.