A homicide truck bomber drove into the provincial headquarters of a commando force north of Baghdad on Monday, killing at least nine soldiers and wounding 10 civilians, police said.

The truck carrying vegetables drove through razor-wire barricades around the two-story building of the Interior Ministry's police commandos in Samarra town, police Capt. Laith Mohammed said.

The building, located at an intersection in the center of the city, was virtually leveled, said Mohammed Ali, a police witness who accompanied the ambulance services. He said three houses nearby were severely damaged and three cars were destroyed.

U.S. forces sealed off the area and rescue workers dug through the rubble.

Samarra, 60 miles north of Baghdad, was the site of a bomb attack that destroyed a revered Shiite shrine on Feb. 22, setting off a wave of deadly sectarian attacks that pushed the country to the brink of civil war.