This archive report was first published on 17 November 2019.
Protests have been raging in Hong Kong since June, with many in the city of 7.5 million people venting fury at eroding freedoms under Chinese rule.
On Sunday, activists dug in around Hong Kong Polytechnic University (PolyU), setting large fires to prevent police from conducting a threatened raid on the campus.
Chinese President Xi Jinping had earlier issued his most strident comments on the crisis, saying it threatened the "one country, two systems" model under which Hong Kong has been ruled since the 1997 handover from Britain.
"I feel scared. There's no way out, all I can do is fight to the end," said one protester joining the barricade in front of the university building.
Police declared the campus a "riot" scene, and blocked exits, threatening "new operations" against those left inside.
But protesters appeared resolute, with a twist in tactics by a leaderless movement so far defined by its fluid, unpredictable nature.
Violence has worsened in recent days, with two men killed in separate incidents linked to the protests this month.
Clashes rippled out across the city deep into Sunday night, with protesters trading Molotov cocktails with tear gas fired by police.
