China has urged UN member states not to attend the virtual event, planned by Germany, the US and Britain.

“The US has banded up with several countries, abused the United Nations’ resources and platform, and smeared and attacked China to serve its own interests,” she said at a daily news conference in Beijing.

“This is total blasphemy against the United Nations,” she said.

China has said the organisers of the virtual UN event, which is due to be held Wednesday, use “human rights issues as a political tool to interfere in China’s internal affairs”.

Some western states and rights groups have accused authorities in Xinjiang of detaining and torturing Uighurs in camps, which the US has described as genocide.

In January, Washington banned the import of cotton and tomato products from Xinjiang over allegations of forced labour.

Beijing denies the accusations and describes the camps as vocational training centres to combat religious extremism.