On the birthday of Communist China, Hong Kong was seized by clashes and tension was high in the streets.
On Tuesday (October 1), tempers flared in the Wong Tai Sin neighborhood with police firing off tear gas after protests decended into chaos.
Chaos had broken out already by the afternoon while thousands more rallied elsewhere in defiance of an official ban.
The day began with officials and the city's pro-establishment elite watching a closed-door flag-raising ceremony.
Roads to the building were closed and security was tight.
Tuesday's rallies pose a direct challenge to Chinese President Xi Jinping while he celebrated 70 years of Communist China with a parade in Beijing.
Protesters have vowed for weeks to hijack the anniversary to shine a spotlight on their calls for greater democracy.
On Tuesday they fanned out across the city, sometimes blocking roads in a frenzied game of cat-and-mouse with police.
The city center was under lockdown, but protesters marched on government headquarters.
And with the streets bathed in black, the likelihood is high the city faces another night of violence.