A car bomb exploded Thursday in southern Baghdad (search), killing a U.S. soldier and at least one Iraqi civilian, the U.S. military said.
The attack against a 1st Cavalry Division patrol happened about 7:30 a.m. local time in the Rashid district of the capital, the military said.
The name of the soldier killed was being withheld pending notification of next of kin.
Two other soldiers suffering minor injuries.
At least one and possibly two Iraqi civilians were also killed in the blast, a statement said.
U.S. soldiers sealed off the area. Thick smoke could be seen erupting from a burning car after the blast.