Gunmen have attacked a house south of Baghdad in an area which remains an al Qaida stronghold, killing six people as they were sleeping in their home, Iraqi police said.
An interior ministry official said those killed in the raid late on Monday included a policeman and a member of the Sahwa, or Sons of Iraq - the Sunni militia which battled al Qaida at the peak of the war.
The official and a village policeman said the gunmen broke into the house in Youssifiyah, just south of the capital, and shot members of two families who were living together. A woman, a girl and a young man were also injured in the raid.
The official and the policeman said the gunmen fled without being captured.