Insurgents killed six people in Iraq's Diyala province on Tuesday, including three in a series of attacks, which began with the killing of a member of an anti-Qaeda group, local police said. Early on Tuesday, gunmen targeted a checkpoint in the village of Al-Abbara, south of Diyala's capital city of Baquba, and killed one member of a local anti-Qaeda group who was manning the checkpoint, a police officer said. The gunmen then carried his body to a house and bombed it, killing a neighbour, the officer said on condition of anonymity.