Thousands of people dressed in black have surrounded the police headquarters in Hong Kong to demand the total withdrawal of the controversial extradition bill.
They are also rallying for the release of detained activists and apologies for police brutality.
The protest comes a day after the government ignored a deadline set by protesters for the bill to be axed.
"We want the law to be withdrawn, not suspended. If the government doesn't respond, we will come again," said a demonstrator.
Millions have clogged the streets of the financial hub this month to protest against the extradition bill, that would allow people to be extradited to China to face trial.
While Hong Kong leader Carrie Lam admitted shortcomings over the bill, she has rejected calls to step down.

Fire breaks out at Kuwaiti refinery after drone attacks
US strike against alleged drug smugglers in eastern Pacific kills two
UK says vaccine protects against strain in deadly meningitis outbreak
Tropical Cyclone Narelle weakens after lashing Australia's northeast with winds, rain
More than 50 injured in fire at car parts factory in South Korea
