Thousands of protesters marched through downtown Hong Kong on Sunday in opposition to changes to an extradition law widely seen as eroding the territory's independent legal system.
Many of those taking part carried yellow umbrellas, recalling Hong Kong's massive 2014 pro-democracy protests, the leaders of whom have been sentenced to up to 16 months in prison.
Hong Kong police said around 22,800 people took part in Sunday's protest at its peak period.
Participants carried placards accusing Hong Kong leader Carrie Lam of "selling out" the territory, and called on her to resign.
Revisions to the law would make it easier to send criminal suspects to mainland China, where they could face vague national security charges and unfair trials.
"Hong Kong and China have completely different legal systems," said marcher Roland Lo, 49.
"Creating a loophole that could mean a Hong Kong person gets extradited to China to face prosecution there, that completely destroys the guarantee of human rights and legal protection of one country, two systems."
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