SHIRQAT, Iraq - At least 20 people were killed and another 35 wounded Thursday when a car bomb was detonated in Baghdad.

Police said explosives were placed in a parked car at a bus terminal in southern Baghdad. The blast ripped through crowds of commuters and set about 40 vehicles on fire, the BBC reported.

Also Thursday, Iraqi police found 20 decapitated bodies southeast of Baghdad in Madaen, CNN reported.

Meanwhile, three British soldiers were killed and a fourth was injured when their patrol was hit by a roadside bomb in Basra.

Mortar rounds also killed two people and wounded 14 others in the Shurja market in Baghdad Thursday, CNN reported.

U.S. Army Brig. Gen. Mick Bednarek said at least 60 suspected al-Qaida militants had been killed in the Baquba area as part of the effort to root out insurgents in that part of Iraq.

In another incident, 14 Iraqi insurgents were killed Wednesday when a truck they were rigging with explosives blew up in the northern Iraqi town of Shirqat, CNN reported

The U.S. military said it was investigating an incident in a village north of Baghdad last week in which a U.S. helicopter attack killed 11 men and wounded eight others after wrongly identifying them as al-Qaida militants.

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