There is still confusion about the total number of terrorists involved in the daring commando-style attack on PNS Mehran, the headquarters of the Pakistani Naval Air Arm, located inside the Faisal base of the Pakistan Air Force at Karachi on the night of May 22, 2011. Mr Rehman Malik, the Pakistani Interior Minister, had estimated the total number as six—of whom, according to him, two were killed in the fire-fight, two blew themselves up to escape capture and two managed to escape. However, in a report lodged with an adjoining Police Station, the Navy has reportedly estimated the total number of terrorists involved as 10 to 12, of whom eight managed to escape.
Apart from the four terrorists, 10 others were also killed. These included one Naval Lieutenant, one naval rating, three members of a naval detachment of the Special Services Group (SSG), which is an inter-services group of specially-trained commandos, three members of the fire brigade and two from the Pakistani Rangers.