Hong Kong police say criminal charges will be filed against an 18-year-old student who was shot in the chest on Tuesday in an incident that has sparked outrage and international condemnation.

Tsang Chi-kin is in a stable condition after receiving surgery, the government said on Thursday.

In a statement, the police said Mr Tsang would be charged with rioting and two counts of “attacking police”. Video of the incident showed Mr Tsang was shot at near point-blank range as he struck an officer with a metal rod.

Rioting charges carry a maximum sentence of 10 years in prison, and have been a point of particular contention in the region after months of unrest. Protesters say the term “rioter” is being used across the board to criminalise citizens exercising their right to assembly.

Thousands attended fresh rallies on Wednesday demanding police accountability for Mr Tsang’s shooting, including students who staged a strike in solidarity with their classmate at the college he attended.

Hong Kong protesters out in force after months of turmoil: In pictures Show all 32 1 /32 Hong Kong protesters out in force after months of turmoil: In pictures Hong Kong protesters out in force after months of turmoil: In pictures A protester throws a stone into a building at Hong Kong Polytechnic University on 11 November Reuters Hong Kong protesters out in force after months of turmoil: In pictures Police patrol the streets of Hong Kong the day after an officer shot a protester during a protest on 11 November EPA Hong Kong protesters out in force after months of turmoil: In pictures Riot police stand guard during a protest against police brutality in Hong Kong on 27 October EPA Hong Kong protesters out in force after months of turmoil: In pictures Protesters carry traffic cones to build a barricade during anti-government protests in Causeway Bay, Hong Kong on 11 November Reuters Hong Kong protesters out in force after months of turmoil: In pictures Protesters use obstacles and bricks 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There followed another night of violence, as petrol bomb-throwing demonstrators angry about the shooting clashed with police into the early hours of Thursday.

Police again used tear gas to disperse protesters who set fires and vandalised shops and metro stations.

“Wherever there are protests nearby I’ll come ... I’m out tonight for a simple reason. You don’t shoot a teenager at point blank range,” said Alex Chan, an interior designer at a protest in the shopping district of Causeway Bay.

“These protests will continue and we won’t give up.”

A lawyer for Mr Tsang was due to appear in court on his behalf later on Thursday. Ahead of proceedings, around 200 supporters had turned up at the courtroom in solidarity.

Tuesday’s shooting came on what Hong Kong’s police chief described as “one of the most violent and most chaotic days in the city’s history”.

Mr Tsang, his classmates told reporters, was motivated to protest by the fear that Beijing plans to erode the special freedoms enjoyed in Hong Kong under the agreement by which the city was handed back to China by Britain in 1997.

Sam, a 17-year-old student who previously joined Mr Tsang on marches, told the Associated Press that he and others born after 1997 feel that if they don’t fight now to defend the territory’s liberties, they may never get a second chance.

“That’s why, I think, Kin is so passionate,” said the schoolmate. “He believes that this is the last time, the last chance for us to fight for what we have.”

Mr Tsang’s shooting was the first time since the unrest began in June that a protester is known to have been hit by live gunfire.