The bombing rocked the Pakistani city of Peshawar , capital of North West Frontier Province . NEW : Suicide bomber in northwestern Pakistan kills at least two , police say . NEW : Suspect blew himself up after running out of bullets in gunfight , police say . Pakistani authorities say they planned attacks on government buildings . Three men plotted to carry out attacks , says Interior Minister Rehman Malik .
NEW : Suicide bomber in northwestern Pakistan kills at least two , police say . NEW : Suspect blew himself up after running out of bullets in gunfight , police say . Pakistani authorities say they planned attacks on government buildings . Three men plotted to carry out attacks , says Interior Minister Rehman Malik .