Thousands of people have marched in Hong Kong to protest at China tightening its grip in the former British colony.
Many marchers carried effigies mocking leader Tung Chee-hwa
On Tuesday, China passed a law allowing it to veto the process by which Hong Kong elects its leader and legislature.
Protesters called for Hong Kong's Beijing-backed leader, Tung Chee-hwa, to step down.
Last July, street protests by 500,000 Hong Kong citizens led China to shelve a controversial anti-subversion law.
Hoping to repeat that effect, democracy activists in Hong Kong have been calling upon the public to march to save democracy in the province.
Organisers say 20,000 people took part.
The BBC's Louisa Lim says the mood of the protest was largely good-natured, though many in the crowd were angry and frustrated.
She says it will become clear whether the marchers have the backing of the majority of Hong Kong citizens when the province votes in September's legislative elections.
Surveys currently show about 60% of Hong Kong people want direct elections for their leaders.
The march was the first big protest since Beijing's decision to claim the power of veto over political reform in Hong Kong.
Many of the marchers wore black ribbons on their arms, signifying the "death" of democracy.
Hong Kong's chief executive Tung Chee-hwa backs Beijing's stand
"The one country, two systems is a complete wash-out," said one marcher, referring to the slogan with which China had promised to govern Hong Kong.
The marchers plan to hand in a petition asking for more public consultation about democracy.
Chinese officials say the door is still open for democratic change, if it is recommended in a report to be submitted by Hong Kong's leader Tung Chee-hwa.
But some analysts say that many Hong Kong people feel politically alienated by the developments of the past few days.
Pro-democracy legislators have condemned Beijing's ruling as undermining the high degree of autonomy promised to Hong Kong when it was handed back to Chinese rule almost seven years ago.