The six militants from the Tariq Afridi faction of the Tehrik-e-Taliban Pakistan died in a skirmish with the pro-government Momin group late on Saturday, media reports said today.
One of the dead was identified as militant commander Shakeel Afridi from Khyber tribal region.
The local political administration launched a probe after the bodies were found in the graveyard yesterday.
In a separate development, militants attacked the home of a tribal elder in Akhorwal area yesterday but fled after security forces reached the area and retaliated.
The troops subsequently targeted militant positions with artillery though there were no reports of casualties.