Eighteen are accused of offences carried out by a far-right gang known as the White Wolves Klan.
The move comes a day after new leader Carrie Lam pledged to heal divisions in the territory.
Detained Alexei Navalny appears in court but says it should be Dmitry Medvedev who is summoned.
Ellie Downie rounds off a successful weekend by winning gold on the bars at the British Gymnastics Championships in Liverpool.
The case has shocked Singapore, with some saying online that the jail sentences are too lenient.
Australian leaders plead for people to stay safe as Cyclone Debbie intensifies off Queensland.
Ms Park is accused of allowing her close friend Choi Soon-sil to extort money from big firms.
Many more are thought to be injured but rescue efforts are being hampered by bad weather.