Chief of Army Staff (COAS) General Raheel Sharif on Wednesday reached Kabul to meet the top Afghan military and political leadership.
The army chief is expected to discuss with the Afghan military leadership the possibility of a joint military operation by the Pakistani and Afghan armies against handlers of the Peshawar carnage that left 141 dead, security sources told.
The army chief will seek the Afghan military's cooperation for "a joint operation to counter terrorism and eliminate militants hiding inside Afghanistan".
A day earlier, it had emerged that a Taliban commander Umar Naray masterminded the Peshawar attack from Afghanistan. COAS is likely to discuss the matter with Afghan officials.
Sources also said that Naray had been issuing directives to militants for carrying out the attack.
"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.
Sources said the army chief would seek Kabul's help in order to extradite top Tehreek-i-Taliban Pakistan chief Mullah Fazalullah who is wanted for terrorism cases in Pakistan.
