Hong Kong protesters sing "God Save the Queen" in plea to Britain
The Sino-British Joint Declaration, signed in 1984, lays out Hong Kong's future after its return to China in 1997, a "one country, two systems" formula that ensures freedoms not enjoyed on the mainland.
"One country, two systems is dead," they shouted in English under the sub-tropical sun, some carrying the colonial flag also bearing the Union Jack. "Free Hong Kong."
The Chinese-ruled territory has been rocked by weeks of sometimes violent pro-democracy protests, with demonstrators angry about what they see as creeping interference by Beijing in their city's affairs despite a promise of autonomy.