A bombing in the Shiite-Sunni neighborhood of Dora in the Iraqi capital Baghdad killed 11 people and injured four. The bomb was planted under a car, and many of those who died were standing outside a bakery.
The U.S. command announced the deaths of two more soldiers, one killed Monday on patrol in Baghdad and the other near Tikrit on Sunday when a roadside bomb blew up near his vehicle.
On Monday, the second straight day of battles between the Mahdi Army -- Iraq's most powerful Shiite militia, and U.S. and Iraqi forces in the southern city of Diwaniya, nine militants were killed.
Police in Iraq, meanwhile, found 60 mutilated bodies of men in various parts of the Iraqi capital Baghdad in the 24-hour period ending Tuesday, police 1st Lt. Mohamed Khayon told the Associated Press.
The bullet-ridden bodies had their hands and feet bound and showed signs of torture. Many appeared to have been shot execution-style. The victims ranged in age from 20 to 50.
This violence went on amid Iraqi Prime Minister Nouri al-Maliki's new plan to place security checkpoints in Baghdad manned by Shiite and Sunni troops.
Al-Maliki's plan also calls for creating local Shiite-Sunni committees that will oversee policing in each district of Baghdad and will report back to the Central Committee for Peace and Security.
Sectarian violence in Baghdad has killed thousands this year, and the Shiite-controlled Interior Ministry and its security forces have been accused of being party to these crimes and allowing militias to roam freely.