Taliban terrorists are holding at least seven hostages, including security personnel, after launching an audacious attack on Pakistan Army's headquarters in Rawalpindi that triggered a fierce gun battle in which a Brigadier, a Lt Col and four other armymen were killed. Quoting military sources, Dawn news reported that the four-five armed terrorists, holed up inside the military intelligence office, freed eight hostages late last night. Military spokesperson Maj Gen Athar Abbas said that four terrorists were also killed in the shootout following the assault by heavily-armed Taliban militants yesterday. The hostages include some civilian employees in the Army headquarters.<br/><br/> <br/><br/>At least eight militants armed with assault rifles and grenades, dressed in military uniform, came in a white van and opened fire when they were challenged by the armymen at a check post near a cricket stadium outside the fortified General Headquarters of army at 11.30 am. The Army initially claimed that the situation was under control. But in the night, Maj Gen Abbas said four to five terrorists are holding about 10 to 15 security personnel and civilian employees hostage in the building. The terrorists are armed and had explosives. Abbas said troops are taking steps to "save as many lives as possible" but declined to give details.<br/><br/>