(Xinhua) -- Two people were killed and five others injured in two attacks in Baghdad on Sunday night, while the police collected 11 unidentified bodies in the capital, a well-informed police source said. Gunmen opened fire on a police patrol in Baghdad's southern district of Doura, killing a policeman and wounding another, the source told Xinhua on condition of anonymity. Mortar barrage struck a residential area in the capital's northern suburb of Sabie al-Bor, killing a civilian and wounding four more, the source said. The source added that they found 11 unidentified bodies in execution-style in different parts of the capital during the past24 hours. Most of bodies were handcuffed, blindfolded, showing signs of torture with bullet holes in the chest and the head, he said.