Eight men have been arrested for unlawful assembly over a graduation day protest at the Chinese University of Hong Kong (CUHK) on November 19.
Three of the arrested individuals "incited secession" in violation of the national security law, the Hong Kong Special Administrative Region (HKSAR) police said on social media.
The eight males arrested are aged 16 to 34, and include students, social workers and two district councilors, the police said.