A suicide bomber rattled the Ashkona RAB office on Friday afternoon, killing himself by detonating a bomb.
RAB's legal and media wing director Mufti Mahmud Khan said a young man was trying to enter the camp and when the RAB members challenged him, he detonated a bomb that was strapped to his body.
The blast killed him on the spot and injured two RAB members.
His body has been defaced by the seismic blast.
The suicide bomber is about 25 years' old, said RAB officials.