Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Chinese Activist Detained After Calling on Xi to Resign Verna Yu HONG KONG - Prominent Chinese legal academic and activist Xu Zhiyong, who has urged President Xi Jinping to step down over China's major crises including the coronavirus epidemic, has been detained by authorities in South China, activists said Monday. His detention is the latest in a crackdown on free speech as China maneuvers to control the narrative on the growing coronavirus epidemic. Activists said police on Saturday arrested Xu Zhiyong, a former law professor known for founding the New Citizens Movement social campaign, while he was staying at the home of a lawyer in the southern Chinese city of Guangzhou. The lawyer, Yang Bin, her husband and son were also detained by police for hiding Xu but were released Sunday evening, the activists said. Police declined to comment by phone on Monday. Xu has been on the run from state security police since December, after the police started rounding up participants of a secret gathering in the southeastern city of Xiamen in Fujian province. Xu was among some 20 activists and human rights lawyers attending. .