Torture in Afghan prisons is 'widespread'

The United Nations says torture in Afghan prisons continues to be widespread despite its recommendations in a similar report in 2011.

More than half of the 635 detainees interviewed by UN investigators said they had been ill-treated or tortured.

The Afghan government says the claims are exaggerated, the BBC's Quentin Sommerville in Kabul says.

Nato's force in Afghanistan, Isaf, has suspended the transfer of detainees to facilities named in the report.