HONG KONG—Thousands of Hong Kong residents took to the streets yesterday in a peaceful demonstration calling for increased democracy on the 10th anniversary of the city’s handover to mainland China.

The protestors, many of whom were carrying flags and banners, started the march from Victoria Park on Hong Kong’s main island and made their way to the main government offices in the city’s central business district. Anson Chan, a former chief secretary in the city’s government, was among the marchers.

“I came to fight for universal suffrage,” said Circle Pak, who was marching with his wife and 10 year-old son. “That will create a better environment for the next generation.”

Yesterday’s march took place after President Hu of China left following a three-day visit. Mr. Hu earlier yesterday stressed the importance of economic growth for Hong Kong and said China is committed to the “one country, two systems” formula.

The Basic Law, Hong Kong’s constitution since Britain returned Hong Kong to Chinese sovereignty in 1997, mandates progress toward direct elections of the chief executive and lawmakers as early as 2007. Chief executive Donald Tsang has promised to resolve the issue of universal suffrage by 2012, without giving further details, after he was picked by a China-backed committee.

Spokespeople from the city’s police department weren’t immediately available for comment on the protests. Jackie Hung, a spokeswoman for the Civil Human Rights Front, which organized the rally, said about 68,000 people participated.

Half a million people attended a protest on July 1, 2003, over a proposed national security law that would allow prosecution for treason, subversion and sedition. Police had lined up on Queen’s Road, the main avenue into central, before the protestors’ arrival today. Sections of Bank of China Tower, the Hong Kong base of China’s second-biggest lender, were roped off to limit access to the building.

“Hong Kong people are still very enthusiastic about democracy and universal suffrage,” said 76-year-old Szeto Wah, a former member of the city’s Legislative Council and democracy activist who was among the marchers.

Mr. Hu said in his speech that China will support democratic development, though he cautioned against undermining China’s interests.

National People’s Congress Chairman Wu Bangguo said last month that Hong Kong’s autonomy is “not intrinsic.”