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, Monday, Dec. 28, 2020. The whereabouts of Zhan, who served four years in prison for reporting on the early days of the pandemic in Wuhan and was expected to be released Monday, May 13, 2024, are unknown, raising concern from activists. Zhan, who had been sentenced to four years in prison on charges of “picking quarrels and provoking trouble,” a vaguely defined charge often used in political cases, has finished serving her sentence at Shanghai's Women Prison. (AP Photo/Kin Cheung, File)