Wong Yuen-lam, the 19-year-old spokeswoman of the group, was arrested today (Sep 22) for conspiring to incite subversion of state power in breach of the national security law. She is detained for investigations.

It is understood that she turned herself in at a police station.

On Monday, police arrested three core members of the same group, including group convener Wong Yat-chin, 20, former secretary general Chan Chi-sum, 20, and former spokeswoman Chu Wai-ying, 18, who is a student at Baptist University.

They were charged with conspiring to incite subversion of state power, as officers said they distributed materials to incite hatred against the government and attract support of inmates by providing them gifts such as chocolates.

They were remanded before their next court appearance on November 3.