Principal of blacklisted madrassa denies US claims
22 August 2013 Last updated at 18:47 BST
The US Treasury has imposed economic sanctions on a Pakistani Islamic school it describes as a "terrorist training centre" which provides support to al-Qaeda and the Taliban.
In a statement it said that the Ganj madrassa in Peshawar was being used as a training and recruiting base.
The BBC's Charles Haviland was invited to the madrassa, where the principal vehemently deny the claims.
Mohammad Ibrahim said: "We teach our pupils religion, we don't preach extremism in this madrassa."