MARDAN - An Assistant Sub Inspector (ASI) was killed while two constables were seriously injured when unidentified armed men started firing on police mobile in Katlong area. Sources said that Katlong police station mobile was on routine patrolling on Saturday midnight when unidentified armed men started firing on police mobile near Koti Shah area of Katlong police station. As a result ASI, Islam Sheed died on the spot while two constables, Abdur Rasheed and Sher Muhammad were seriously injured. The injured were shifted to District Headquarters Hospital, Mardan, from where constable Abdur Rashid was referred to Peshawar in critical condition. A police party headed by SP Mir Qasim Khan reached the spot and started search operation. of the area but no one was arrested.