An official says the suicide bomber was a teenager . President Chris Lawrence says the `` outrageous attack '' is `` an affront ... to all humanity '' The security forces pounded militant hideouts in Mohmand Agency with helicopter gunships , said Maqsood Amin , a senior government official in the area . U.N. claims responsibility for the blast , which killed more than 300 people . A The Pakistani Taliban spokesman says at least 46 people were going through security to get food .
An official says the suicide bomber was a teenager . President Chris Lawrence says the `` outrageous attack '' is `` an affront ... to all humanity '' U.N. claims responsibility for the blast , which killed more than 300 people . A The Pakistani Taliban spokesman says at least 46 people were going through security to get food .