24 November 2019 .
The leak was made to the International Consortium of Investigative Journalists (ICIJ), which has worked with 17 media partners, including BBC Panorama and The Guardian newspaper in the UK .
The investigation has found new evidence which undermines Beijing's claim that the detention camps, which have been built across Xinjiang in the past three years, are for voluntary re-education purposes to counter extremism .
About a million people - mostly from the Muslim Uighur community - are thought to have been detained without trial .
https://www.bbc.co.uk/news/world-asia-china-50511063 .
