Relatives and supporters of 12 Hong Kongers, detained in China after trying to flee the city by speedboat, protested on Saturday on an island near the Chinese prison where they have been held virtually incommunicado for nearly three months.
The 11 men and one woman were captured by the Chinese coast guard on Aug. 23 aboard a speedboat believed to be bound for Taiwan.
All had faced charges linked to the protest movement embroiling Hong Kong, including rioting and violation of the national security law China imposed in June.