Describing China's internment of an estimated 1 million Muslims as a "horrific situation," a U.S. envoy on religion called Tuesday for an independent investigation into the detentions and for the release of those being held.
Sam Brownback, U.S. ambassador-at-large for international religious freedom, said China has done nothing to assuage concerns from the U.S. and others over the detention of Uighurs, Kazakhs and members of other Muslim minority groups.
"We've been putting out very clearly that this is a horrific situation that's taking place in Xinjiang," Brownback said in a telephone news conference with reporters, referring to the northwestern region that is home to most Chinese Muslims.
"It is just a very tragic and I think a horrific situation there," he said.
At the end of a three-day visit to Taiwan, Brownback met with Lee Ching-yu, the wife of Taiwanese pro-democracy activist Lee Ming-che, who is serving a five-year prison sentence in China on charges of subverting state power.
Lee Ming-che's physical condition has reportedly deteriorated markedly since his 2017 detention and Brownback said the meeting aimed to "try to highlight that and to call on the government of China to release him."
China last week angrily protested Brownback's earlier remarks made in Hong Kong that criticized Beijing's polices toward religious minorities and accused the country of being "at war with faith."
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China's officially atheist Communist government at first denied the existence of the internment camps in Xinjiang, but now says they are vocational training facilities aimed at countering Muslim radicalism and separatist tendencies.
China says Xinjiang has long been its territory and claims it is bringing prosperity and development to the vast, resource-rich region. Many among Xinjiang's native ethnic groups say they are being denied economic options in favor of migrants from elsewhere in China and that their Muslim faith and unique culture and language are being gradually eradicated.
The camps sprang up over the past two years at extraordinary speed and on a massive scale, as monitored by satellite imagery. China maintains a massive security presence in Xinjiang and efforts to independently verify claims by Uighur activists are routinely blocked.
Brownback appeared undeterred by Beijing's complaints over his earlier comments, describing China's explanation of the reasons behind the camps as "completely unsatisfactory answers."
China is already listed by the U.S. among the worst violators of religious freedom, and Brownback held open the possibility of sanctions and other punitive measures "if corrective actions aren't taken."
While making no commitments, Brownback held open the possibility of action toward individuals involved in the internments under The Global Magnitsky Act of 2016.
The act makes it possible to impose entry bans and targeted sanctions on individuals for committing human rights violations or acts of significant corruption.
Brownback also contrasted Beijing's attacks on religion with the tolerant approach of liberal governments such as that of Taiwan, a self-governing island democracy that China claims as its own territory. He said Washington would continue to push for dialogue among all faiths to promote religious freedom worldwide.
"The administration is serious about religious freedom matters and deeply concerned about what's taking place in China," Brownback said.