The assault began when one of the suicide attackers detonated an explosives-filled truck at the front gate of the spy agency , said Shafiq Nang , a spokesman for the governor of Ghazni province . Ghazni is the regional security headquarters for Pakistan 's intelligence agency . The Taliban claimed responsibility for the attack . Four suicide bombers took part . 21 people died , including all the attackers , and more than 150 were injured .
Ghazni is the regional security headquarters for Pakistan 's intelligence agency . The Taliban claimed responsibility for the attack . Four suicide bombers took part . 21 people died , including all the attackers , and more than 150 were injured .