The bomber drove his explosives-laden vehicle into a convoy of the paramilitary Frontier Corps that was on its way to inaugurate a school in Kad that was blown up by the Taliban but rebuilt with money from the United States Assistance for International Development (USAID), the official said.

Two US army trainers were also amongst the 131 wounded, most of who were school children. Two journalists accompanying the convoy were also wounded. Operation Commander, Col. Nadeem Mirza is also reported to have sustained injuries.

The Tehrik-i-Taliban Pakistan has accepted responsibility for the bombing, a private television channel said.