BAGHDAD, Iraq - A car bomber rammed into a U.S. convoy Wednesday as American forces battled militants north of Baghdad, leaving at least 10 people dead by the bombing and fighting, witnesses said.
At least 20 others were injured by the car bomb and the heavy clashes in Beiji, 155 miles north of the capital.
There was no immediate comment from the U.S. military on the incident, and it was unclear whether there were any American casualties.
Beiji is the site of Iraq's largest oil refinery and a major power station
Elsewhere on Wednesday, insurgents attacks Iraqi security forces around the rebellious Sunni Triangle. The region is a large swath of land to the north and west of Baghdad where resistance to the Americans is fiercest.
* South of Baghdad, a roadside bomb detonated Wednesday near an Iraqi National Guard convoy in the insurgent hotspot of Iskandariyah, killing two guardsmen and wounding three others, police and hospital officials said.
* In the central city of Baqouba, insurgents attacked police headquarters with gunfire late Tuesday, then with a mortar attack Wednesday, though no casualties were reported, police said.
* On Monday, U.S. troops and Iraqi forces fought insurgents in pitched battles that left at least 20 enemy fighters dead in the guerrilla hotspot of Baqouba. One Iraqi policeman and seven civilians were also killed. The Monday clashes left 15 others wounded, including four American 1st Infantry Division soldiers, the military said.
In Fallujah, heavy machine gunfire and explosions were heard Wednesday morning coming from the south-central parts of the city as U.S. Marines continued to hunt for remaining fighters.
In the city's northern Jolan neighborhood, Marines fought insurgents who officers said had snuck back into the city by swimming across the Euphrates river.
Bullets snapped overhead as Iraqi body-collection workers supervised by the Marines cowered against walls and in buildings. After 15 minutes of fighting, three insurgents were dead and one Marine lightly injured in the hand, officers said.
Truck driver freed near Baghdad
Meanwhile, Iraqi security forces, backed by U.S. Marines, freed a captive Iraqi truck driver during a raid south of Baghdad, the U.S. military said Wednesday.
The Monday raid took place near Mahmoudiya, about 25 miles south of Baghdad, as the joint force swept through several buildings in search of militants in the area, a military statement said.
The rescued hostage, who was not identified, was taken to a nearby U.S. base, where he received medical treatment before being released.
Meanwhile, the U.S. military said Wednesday that Mosul appeared calmer after operations to restore control in the western part of the city, with only a handful of isolated attacks with small arms fire.
"It's been quiet overnight. We'll continue with operations to clear out the last remaining pockets of the insurgency," said Capt. Angela Bowman, with Task Force Olympia.
Troops met "very little resistance" Tuesday in securing several of the dozen or so police stations that had been captured by insurgents, the U.S. military command said. Loud explosions and gunfire rang out Tuesday as U.S. warplanes and helicopters circled over Mosul, Iraq's third-largest city with more than 1 million residents.
Mortar shells hit two areas near the main government building in the city center, killing three civilians and wounding 25, hospital officials said. One American soldier was wounded when a car bomb exploded near a U.S. convoy in western Mosul, the military said.