Thousands of black-clad protesters have blocked roads and surrounded police headquarters in Hong Kong in the latest demonstrations over an extradition bill that has triggered violent protests and plunged the Chinese-ruled city into crisis.
Groups of mostly students wearing hard hats, goggles and face masks set up roadblocks and trapped vehicles in a generally peaceful protest to demand that leader Carrie Lam, who promoted and then postponed the bill, scrap it altogether.
The protests, which pose the greatest popular challenge to Chinese President Xi Jinping since he took power in 2012, once again forced the temporary closure of Hong Kong government offices over security concerns.
Roads that would normally be jammed with traffic near the heart of the former British colony were empty, with demonstrators reinforcing roadblocks with metal barriers.
"Never surrender," echoed through the streets as the protesters chanted near police headquarters and called on police chief Stephen Lo to step down.
Police warned activists through loud hailers not to charge.
Hundreds remained outside government buildings on Friday night, with the majority sitting peacefully and spraying each other with water to keep cool.
Nearby, a large group sang Sing Hallelujah to the Lord, which has emerged as the unlikely anthem of the protests.
Hong Kong returned to Chinese rule in 1997, since when it has been governed under a "one country, two systems" formula that allows freedoms not enjoyed in mainland China, including a much-cherished independent judiciary.
Millions of people, fearing a further erosion of those freedoms, have clogged the streets of the Asian financial centre this month to rally against the bill, which would allow people to be extradited to the mainland to face trial in courts controlled by the Communist Party.
It triggered the most violent protests in decades when police fired rubber bullets and tear gas to disperse the crowds. Beijing's squeeze sparked pro-democracy protests in 2014 that paralysed parts of the city for 79 days.
Many accuse China of obstructing democratic reforms, interfering with elections and of being behind the disappearance of five Hong Kong-based booksellers, starting in 2015, who specialised in works critical of Chinese leaders.
Friday's marchers demanded that the government drop all charges against those arrested in last week's clashes, charge police with what they describe as violent action and stop referring to the protests as a riot.
A small group of demonstrators hurled eggs at police outside the headquarters to protest against police violence. Amnesty International in a statement on Friday that evidence of unlawful use of force by police during the June 12 protest was "irrefutable".