Authorities say gunmen broke into a house north of the Iraqi capital and killed the sleeping family inside before blowing up the property. Police said Sunday's early morning strike appeared to target a bodyguard of the mayor of Tarmiyah, 30 miles (50 kilometers) north of Baghdad. The pre-dawn attack happened a few miles (kilometers) away, in the village of Mishahda. Police said the bodyguard, and his wife, sister and two young daughters were killed. A medic at a military hospital in Tarmiyah confirmed the casualties, according to a report of the Associated Press.