Pakistan on Wednesday hanged four militants linked to a Taliban massacre at a school in the northwestern city of Peshawar, the first time it has executed anyone convicted in the attack, which killed more than 150 people.

"Four militants involved in the attack on the APS school were hanged this morning in Kohat prison," a Peshawar security official told AFP. The executions were confirmed by a prison official, who said the militants had held a final meeting with their families on Tuesday night.