A Taiwan resident is currently under investigation for suspicion of endangering national security, said Ma Xiaoguang, spokesman of the Taiwan Affairs Office of the State Council on Wednesday at a routine press conference.
Ma was responding to questions about reports that Lee Ming-che, a former Democratic Progressive Party (DPP) worker, went missing after entering southern China's Guangdong from Macao.
Lee is in good condition, added Ma.
Related: 'Taiwan independence' can never be allowed: Chinese mainland spokesman
The Chinese mainland and Taiwan belong to one China, and "Taiwan independence" can never be allowed, according to a Chinese mainland spokesman on Wednesday.
