On Tuesday afternoon, a spokesman for the foreign ministry, Zhao Lijian, told a daily press conference Cheng was “suspected of carrying out illegal activities endangering China’s national security”.“ This case is being handled according to law and Cheng’s legitimate rights and interests are fully guaranteed,” he said.
No further details were provided. Cheng was critical of the Chinese government in English posts on her Facebook page earlier this year, but there has been no indication the posts were linked to her detention. CGTN has since scrubbed all evidence of her employment from its websites.