GENEVA -- China can't cooperate with the UN human rights office after it released a report criticizing Beijing's policies against Uyghurs and other ethnic groups in western Xinjiang, a top Chinese diplomat said Friday.

However, Chen Xu, China's ambassador to UN institutions in Geneva distinguished between not working with the human rights office and cooperating with the world body overall.

Chen said the report issued last week - which said some rights violations under China's anti-terrorism policies could amount to crimes against humanity - offered up 鈥済roundless blame鈥� of China's policies and practices.

鈥淲e cannot, on the one hand, conduct cooperation with the office, while at the same time it issued such a kind of assessment,鈥� Chen told UN Geneva press association ACANU. China believes the report 鈥渃onstitutes a threat,鈥� and cannot 鈥渃onduct cooperation as if nothing happened,鈥� he said.

In the waning minutes of her last day in office on Aug. 31, the office of Michelle Bachelet, then UN High Commissioner for Human Rights, issued a report accusing China of serious human rights violations against Uyghurs and other mostly Muslim ethnic groups. It called on the world community to give 鈥渦rgent attention鈥� to the situation in Xinjiang.

Human rights groups have accused China of sweeping a million or more people from the minority groups into detention camps where many have said they were tortured, sexually assaulted, and forced to abandon their language and religion.

China has repeatedly said the 鈥渁ssessment鈥� was a fabrication cooked up by Western nations.

Chen said China - one of the five permanent members of the UN Security Council - will continue to work with the United Nations overall, calling the world body the 鈥渃ore鈥� of international relations.

鈥淲e will continue the cooperation. But as I said, the office cannot represent the United Nations by delivering such an assessment, in such a nature,鈥� he said.

Chen also said China would take an 鈥渁ctive part鈥� in activities of the UN-backed Human Rights Council in its upcoming four-week session starting Monday.

The council works closely with the UN human rights office, which falls under the office of UN Secretary-General Antonio Guterres. On Thursday, the UN General Assembly chose Austria's Volker Turk as Bachelet's successor.