Chow Hang-tung, a prominent barrister, among those held over social media posts before Tiananmen Square anniversary
Hong Kong police have arrested six people, marking the first time that the city’s new national security law, known as Article 23, has been used against suspects since it was implemented in March.
The six people, aged between 37 and 65, are accused of publishing messages with seditious intent ahead of an “upcoming sensitive date”, according to a police statement.
