The BBC's Aleem Maqbool explains the background to the video

Pakistan's army has ordered a probe into a video posted on social networking site Facebook that appears to show soldiers abusing Taliban.

The 10-minute video shows men in military uniform beating suspects as officers stand by giving instructions.

An army spokesman told the BBC that anybody found guilty of misconduct would be punished.

It is not clear who shot the film or where. It appears to have been made recently, perhaps in the Swat valley.

If the authenticity of the video is confirmed, it would be the first clear proof of such abuse.

Human rights groups have accused the military of being involved in torture and extrajudicial killings in the region.

Troops recently declared they had largely cleared the Swat valley of insurgents after a sustained offensive there.