At least 20 Iraqis and two US troops were killed Monday in various incidents.
One US soldier has died after a road accident in Baghdad, the US military said. Another soldier died on the spot.
Seven Iraqi National Guard soldiers were killed on Monday morning when armed men opened fire on them at a checkpoint in central Iraq, officials said.
The deaths took place at a checkpoint in Buhriz, about 35 miles northeast of Baghdad, near the troubled city of Baquoba.
The seven slain officers were brought to a Baqouba hospital, according to an official at the hospital, Ali Ahmed, cited by the AP.
Another Iraqi soldier was knelt in morning prayer when attackers came up from behind and decapitated him; another three were burnt to death in a vehicle, the sources said. The dead civilian was a security guard at an Iraqi television building, they said.
In another attack, seven Iraqi policemen were killed and 15 wounded in a suicide car bomb in front of a police station in the city of Baiji, a senior police officer told AFP.
Elsewhere, two Iraqi government auditors were shot dead after armed gunmen stopped their car in an area southeast of Baghdad. The two Iraqis, who worked in the provincial auditing department in Kut, were shot while riding in their car in Suwaira, about 25 miles southeast of Baghdad, according to an official at a Kut hospital.
Meanwhile, Iraqi forces claimed to kill 35 "insurgents" over the past 48 hours during a sweep near Fallujah, west of Baghdad, the Iraqi government said in a statement. "There were clashes between Iraqi army forces and terrorist groups in the area between Jurf al-Sahar and Ameriyat al-Fallujah, during which 64 terrorists were arrested, 35 killed and many different types of weapons seized," the statement said, according to AFP.
There was no immediate confirmation of the toll from security or medical sources.
