AWARAN - Three persons of a family were killed and two others seriously injured when armed men opened firing in a house here on Thursday. According to police, armed men opened firing on the house and three people were killed and two other received injuries in the attack. The attackers, however, could not be identified, and also managed to escape from  the scene. According to police, bodies and injured person were shifted to DHQ hospital. However, police registered a case against unidentified people and started action for their arrest.