The suicide bomber blew himself up after people tried to help him , police say . The attack took place at a weapons market in Dara Adam Khel , according to Masood Khan Afridi , the police chief of Kohat district . The attack took place at a small market in the Ismail Khel .
The suicide bomber blew himself up after people tried to help him , police say . The attack took place at a small market in the Ismail Khel .