Pakistan's armed forces have been accused of waging a campaign of extra-judicial killings and sending death squads to execute suspected Taliban militants in the Swat valley, a media report said on Wednesday.
In one case the security forces have been accused of hanging a body from a lamp post in the Swat Valley, The Daily Telegraph said.
In Dargai in the neighbouring Malakand district, the body of a Taliban militant was left hanging from a lamp post with a note pinned to it saying, "anyone who joins the Taliban will meet the same fate". Mimicking a Taliban tactic, the act was a clear warning to the group.
The report quoted one person saying his brother, a Taliban fighter, had been arrested by soldiers two weeks ago.
He alleged that four days later his brother's body was found on wasteland by neighbours. Locals said the bodies of four more militants had been found in similar circumstances.
An army spokesman denied that any of those killed had been in its custody.
Asma Jahangir, leading human rights lawyer of Pakistan sought an independent inquiry into reports that 20 bodies were found in a mass grave at the weekend.
The Human Rights Commission, founded by her said, it had compiled evidence that at least six of the dead had been shot by the security services.