Tiananmen Square protests of 1989
Thousands attend Hong Kong's Victoria Park on the anniversary of the 1989 crackdown on pro-democracy protests.
Hong Kong activists call on people to light a candle in memory of Tiananmen Square, as lawmakers discuss security law which will make criticism of China subversion.
A playwright and producer in Hong Kong are worried about the future of free speech.
Wang Dan was one of the most visible faces of China's 1989 pro-democracy movement, which ended in a bloody crackdown. What does he make of the political unrest in Hong Kong?
Even after 30 years, bosses can't bear to allow discussion of what happened. The Economist magazine's James Miles was a BBC reporter in Beijing at the time.
By Stephen McDonell
BBC News, Beijing
Hong Kong is one of the few places in China where an annual vigil can be safely held by protesters.
Wang Zhixin helped lead the student protest that ended in violent bloodshed, and has never returned to the square - until now.