Five people were killed and six others were wounded in separate gunfire and bomb attacks in Iraq\'s western province of Anbar on Tuesday, a provincial police source told Xinhua. Gunmen with their assaults rifles attacked a police checkpoint in a main road leading to the city of Haditha, some 200 km west of Baghdad, killing a policeman and wounding three others, the source from Anbar\'s operations command said on condition of anonymity. Iraqi security forces sealed off the scene and carried out operation in the area, the source said. In a separate incident, gunmen broke into the house of a policeman in a village south of the city of Fallujah, some 50 km west of Baghdad, and shot him dead with his father and mother and wounded his brother, the source added. Also in the province, a roadside bomb detonated near a car in a main road near Fallujah, destroying the car and killing a civilian and wounding two others aboard, he said. Insurgent attacks continue in the once volatile Sunni Arab area in west of Baghdad that stretches through Anbar province to Iraq\'s western borders with Syria, Jordan and Saudi Arabia.