Uighur women detained in Chinese “re-education” camps in Xinjiang have been systematically raped, abused and tortured, according to a detailed report by the BBC Wednesday.

The report told the stories of women who were held, tortured and abused in the Xinjiang “re-education” camps. One of the women who was held for nine months in Xinjiang, Tursunay Ziawudun, described the conditions of the camps and said that women were removed from their cells every night and raped by Chinese men. Another woman described how she was forced to assist in detaining other women at the camps: “My job was to remove their clothes above the waist and handcuff them so they cannot move. … Then I would leave the women in the room and a man would enter—some Chinese man from outside or policeman. I sat silently next to the door, and when the man left the room I took the woman for a shower.” Some of the men allegedly paid for “their pick of the prettiest young inmates.”

During interrogations of Uighur and Kazakh women, the report states that many were abused, shamed, beaten and tortured by electric shock. One woman who was coerced into teaching at one of the camps recounted hearing from an officer at the camp that “the rape has become a culture. It is gang rape and the Chinese police not only rape them but also electrocute them. They are subject to horrific torture.”

Although it is difficult to completely verify the stories that the women shared, the reports shared by the BBC were consistent with travel records and previous statements from other detainees.

Many countries have condemned the treatment of the Uighur minority and other minorities in Xinjiang. In a press release from January 19, the former US Secretary of State Mike Pompeo designated the human rights atrocities in Xinjiang as genocide and called upon China to immediately cease their crimes and end the persecution of ethnic minorities. Other countries like Australia have called for an immediate investigation by UN High Commissioner for Human Rights Michelle Bachelet into the alleged inhuman treatment of Uighur women following the release of the BBC report.

Beijing denies any accusations of sexual abuse and maintains that the educational centers are intended to reduce violent extremism and separatism by teaching vocational skills. In a press conference Thursday, Foreign Ministry spokesperson Wang Wengbin said, “I can tell you that China has extended invitation long ago to the UN High Commissioner for Human Rights and we are in communication on this with the UNHCHR. We welcome fair-minded foreigners to visit Xinjiang and learn the real situation there.” During the press conference, he refuted the claims raised by the BBC report and reiterated that China would not tolerate foreign interference in Chinese internal affairs under the pretext of humans rights abuses.