PESHAWAR - A personnel of Frontier Constabulary (FC) was killed and another got injured while a militant was shot dead during an exchange of fire between security forces and militants at Azakhel area of district Peshawar here on Tuesday. Two of the militants escaped during the encounter. According to police sources, on getting information some unknown militants had taken shelter in a house in the suburban locality Azakhel of Peshawar, the security forces cordoned off the house. Resultantly, militants inside the house started firing at the security forces. The security forces also retaliated in the same way. During the exchange of fires, a personnel of FC, Sher Ali, was killed while another named Asmatullah got injured. A militant identified as Sabir was also killed during the operation. Sources said that there were three militants inside the house. Besides the killing of one during the exchange of fire, the other two managed to escape from the scene. The exchange of fire continued for several hours and after the incident security forces started search operation in the area.