Pakistani jets and ground forces killed 67 militants in a northwestern tribal region near the Afghan border, officials said, days after the Taliban killed 148 people - mostly children - in a school massacre.
Former prime minister Gordon Brown has condemned the "massacre" at a school in Pakistan that has left more than 100 people dead.
"The whole world will be shocked and heartbroken at the massacre in Peshawar that has destroyed so many innocent young lives," Mr Brown, the United Nations Special Envoy for Global Education, said.
"We must remain resolute in saying that no terrorist group can at any time ever justify denying children the right to an education and we will do everything in our power to support the Pakistan authorities and make sure their schools are safe and protected.
"Too often innocent girls and boys have become targets for terrorists who want to deny children the right to education and schools have become theatres of war."
The boxer said it was the "least he could do" and even donated the £30,000 shorts he wore in his last fight against Devon Alexander.
Pakistan have released intelligence of the final conversations by the Taliban attackers responsible for the Peshawar school massacre.
As forensics examine the evidence in the school were 148 people, mainly children, where killed, students prepare to return to the classroom.