A million people. Wow, that is a lot. All members of one minority group.
https://www.independent.co.uk/news/world/asia/china-muslim-detention-centres-xinjiang-un-security-council-letter-a8999236.html
https://www.independent.co.uk/news/world/asia/china-muslim-detention-centres-xinjiang-un-security-council-letter-a8999236.html