At least 24 people, including an American soldier, have been killed in a series of bombings in Baghdad and elsewhere in Iraq.
The U.S. command says the soldier was killed by a roadside bomb southeast of Karbala.
In Baghdad, a suicide bomber set off an explosives belt on a bus in a Shiite district.
Police say 12 people were killed, and 15 others were hurt.
Earlier, a bomb exploded next to some tea stalls near Baghdad's Liberation Square, killing at least four day laborers.
And northwest of Baghdad, a suicide attacker blew himself up in a restaurant in Mosul that was filled with policemen eating breakfast.
At least five people died, and more than 20 others were hurt.
Two more civilians died when a car bomb exploded southeast of Baghdad.
Meanwhile, a British official says two contractors from Macedonia were released by kidnappers, four days after they were abducted in Basra.