BEIJING -- A resident of Taiwan, Lee Ming-che, is under investigation for being suspected of endangering national security, a Chinese mainland official said Wednesday.

Developments of the investigation, in line with judicial process, will be disclosed in a timely fashion, Ma Xiaoguang, spokesperson for the Taiwan Affairs Office of the State Council, told a press conference.

The mainland will protect the legitimate rights and interests of all residents of Taiwan who come to the mainland, as long as they abide by the regulations and laws, said Ma.