A suicide bomber blew himself up when he was caught at Pindyalai town of Mohmand agency on Saturday.
According to officials, shoppers in Danishkal bazaar of the town spotted two suspects wandering in the market and when they were surrounded for checking one of them blew himself up while other escaped.
Bomber was killed in the incident and no other casualties occurred, officials confirmed.
The security forces cordoned off the area soon after incident took place and started search operation to locate the escape bomber.