PESHAWAR: At least nine suspected militants were killed and scores of others injured Wednesday in a drone strike in the Nazyan area of Afghanistan's Nangarhar province.

Official sources told Dawn that the drone fired two missiles on a compound in the Nazyan area of Nangarhar near the Pak-Afghan border, leaving nine suspected militants dead and several others injured.

According to security officials, militants based in the Nazyan district had planned the devastating attack on the Army Public School in Peshawar, which left over 150 people dead, including more than 130 schoolchildren.

Strikes against militants have increased on both sides of the border since the attack.

Pakistani security forces have also been carrying out ground offensives in Khyber Agency, particularly the Tirah Valley of Bara which borders Nazyan.

Drone attacks are widely unpopular across Pakistan and according to survey conducted in June last year, 66 per cent of the country's citizens oppose the strikes.