Status of Chinese citizen journalist who reported on COVID unknown on day of expected prison release

FILE - A pro-democracy activist holds placards with the picture of Chinese citizen journalist Zhang Zhan outside the Chinese central government's liaison office, in Hong Kong, Dec. 28, 2020.

The whereabouts of a Chinese citizen journalist who served four years in prison for reporting on the early days of the pandemic in Wuhan and was expected to be released Monday are unknown, raising concern from activists.