An unlikely grouping of federal parliamentarians from across the political spectrum has condemned China's unprecedented crackdown against Muslim minorities and urged a strong response from Australia and the international community.

The politicians — Greens leader Richard Di Natale, Liberal senator Eric Abetz, and Centre Alliance senator Rex Patrick — also voiced concern at claims Uighurs living in Australia were being monitored and potentially intimidated by the Chinese government.

Uighurs holding up photos of relatives who are missing, in internment camps or have passed away. Credit:Alex Ellinghausen

The Chinese Communist Party has escalated a campaign targeting Uighurs and other minorities in the north-western province of Xinjiang, with up to 1 million people said to be detained in a network of mass indoctrination camps aimed at suppressing religious activity and enforcing CCP practices.

According to reports, detainees have been abused and tortured for failing to comply with the "re-education" program. People not in the camps are living in an increasingly advanced surveillance state with heavy restrictions on their freedoms.