In a statement, Secretary of State Mike Pompeo urged China to halt its "campaign of repression" in the region, release all those arbitrarily detained and stop trying to coerce members of Chinese Muslim minority groups residing abroad to return to China.
"The protection of human rights is of fundamental importance, and all countries must respect their human rights obligations and commitments," Pompeo said. "The United States will continue to review its authorities to respond to these abuses."
The announcement came a day after the Commerce Department blacklisted Chinese government agencies and a number of Chinese companies that develop facial recognition and other artificial intelligence technology the U.S. says is being used to repress Muslim minorities. The blacklist effectively bars U.S. firms from selling technology to the Chinese companies without government approval.
China is estimated to have detained up to 1 million Muslims in prison-like detention centers in the region. The detentions come on top of harsh travel restrictions and a massive surveillance network equipped with facial recognition technology. China has denied committing abuses in the centers and has described them as schools aimed at providing employable skills and combating extremism.