ISLAMABAD: On his visit to Kabul on Wednesday, Chief of Army Staff (COAS) General Raheel Sharif sought handover of top Tehreek-i-Taliban Pakistan chief Mullah Fazalullah who is wanted for terrorism cases in Pakistan.

The army chief shared classified intelligence details with the Afghan officials and revealed to them that the mastermind behind the Peshawar attack, who was from Afghanistan, was giving directives to terrorists.

Afghan President Ashraf Ghani said Afghanistan stands with the people of Pakistan in their hour of grief.

Read: Militant siege of Peshawar school ends, 141 killed

General Raheel also met International Security Assistance Force (Isaf) commander General Joseph Dunford. Dunford condemned the attack on the Army Public School in Peshawar and assured Pakistan of complete cooperation in countering terrorism and in security related matters.

General Raheel also sought Kabul's help in order to extradite top Tehreek-i-Taliban Pakistan chief Mullah Fazalullah who is wanted for terrorism cases in Pakistan.

A day earlier, it had emerged that a Taliban commander Umar Naray masterminded the Peshawar attack from Afghanistan.

"His communications have been intercepted as well which helped security agencies in tracing his location and whereabouts which was urgently shared not only with the Afghan army but also with Nato forces," a security source said.

Read | 'I saw death so close': student recalls Peshawar school carnage