Police fire tear gas as thousands rally in Hong Kong
Out in numbers, police intervened quickly after the authorized rally turned into an impromptu, and unauthorized, march - firing volleys of tear gas and making arrests.
Demonstrators spilled onto the streets, building barricades and spray painting buildings.
The "Universal Siege Against Communism" demonstration was the latest in a relentless series of actions against the government since June, when Hong Kongers took to the streets to voice their anger over a now-withdrawn extradition bill.
The protests, which have since broadened to include demands for universal suffrage and an independent investigation into police handling of the demonstrations, have lost some of their intensity in recent weeks.
