ISLAMABAD: About 4 to 5 terrorists in a security office near second GHQ check post are holding 10-15 people, including security and civil personnel, hostage after the attempted attack on GHQ, DG ISPR Maj. General Athar Abbas said on Saturday. Security personnel have surrounded the office, ISPR added. Earlier, six terrorists attempted to launch an attack on GHQ which was foiled by the security personnel. Four terrorists were killed while two escaped from the scene. Six security men including …