More documents leaked out of China have shown how the one-party state is trying to "wipe the Muslim Uighurs... off the face of the Earth".

A week after the New York Times released hundreds of files exposing the inner workings of the secretive camps - which China says are voluntary and for reeducation - more have been revealed, this time detailing exactly what goes on behind closed doors in the western Xinjiang region.

They reportedly include a memo from one of the Communist Party's top officials in Xinjiang saying no one should ever be allowed to escape.

According to BBC's Panorama programme, which has sighted the documents released by the International Consortium of Investigative Journalists (ICIJ), the memo also tells staff to "increase discipline and punishment of behavioural violations", "promote repentance and confession" and "encourage students to truly transform".

Every aspect of their lives is tightly controlled, including where their bed is, which desk they sit at and when they're allowed to use the toilet, and it is "strictly forbidden for this to be changed".

Students are forced to learn Mandarin, and every corner of their dorms and classrooms is under video surveillance.