Unknown intruders opened firing in the house of a retired official of Pakistan Air Force killing five members of the family and injured two others, a private TV reported. Unknown gunmen entered in the house of retired PAF official Aslam at Liaquat Colony in Cantt police station precinct in Sargodha when he had left the house to offer prayers. The armed men opened indiscriminate firing in the house killing wife, three daughters and a son of Aslam. A daughter and a son were seriously injured in shooting and transferred to Civil Hospital in precarious condition. Police investigating into the incident.