Siege of the Hong Kong Polytechnic University

At around 10:00 am, some citizens attempted to clear the roadblocks between Austin Road and Chatham Road South, near Rosary Church. During their attempt to remove the obstacles in the road, protesters blocked their actions and prevented them from dismantling the roadblocks. During the confrontation, bricks were thrown towards the people clearing the obstacles. Riot police arrived at around 11:00 and confronted the protesters, firing tear gas and rubber bullets at them. The protesters responded by throwing bricks and petrol bombs. The situation deteriorated by the afternoon, where water cannons and armoured cars were used to breach the protesters' line. Blue-dyed water fired from the water cannons was continuously used, with the protesters fighting back with bricks and petrol bombs.[15][16]

Around 9:00 pm, the police publicly announced that anyone arrested inside Polytechnic University would face the charge of rioting, as would anyone who attempted to go in or help people inside. The police added that anyone inside the campus could peacefully leave via the exit at Y-core. However, those attempting to leave via the designated exit were instead arrested. Among the people arrested were university staff, reporters, social workers, volunteer first-aid personnel, doctors and nurses.[17] Police claimed that protesters were disguising themselves as medical workers. Dr Arisina Ma, president of Hong Kong Public Doctors’ Association, criticised the police for arresting and detaining them for 24 hours and then forcing them to post bail instead of simply checking their professional identification and releasing them.[18] Surgeon Darren Mann, who had witnessed medics being hogtied and who had telephoned both the Red Cross and Médecins Sans Frontières asking them to intervene, criticised the police for treating medical personnel like terrorists, stating: "The arrest of [active medical] personnel is almost unheard of in civilised countries and is incompatible with the compact of humanitarianism".[19]

Polytechnic University authorities released a statement saying that protesters had damaged its laboratories and stolen dangerous chemicals.[20] Subsequently, safety concerns mounted as the Chinese University, Polytechnic University, and City University also reported to police that chemicals – several of which are toxic, corrosive, or flammable, and deadly – had been stolen from their laboratories.[21]

• 
  Confrontation between protesters and police in Cheong Wan Road near PolyU
• 
  Police using a dyed water cannon to disperse protesters from the road
• 
  Protesters throwing molotov cocktails at the police
• 
  Protesters walking on the rooftop of the bridge connecting PolyU and nearby districts
• 
  Fire in the Cross-Harbour Tunnel bridge that connects the MTR station and PolyU

Auxiliary Bishop of Hong Kong Joseph Ha and a number of pro-democracy legislators requested to meet the HKPF commander, hoping that the crisis could be settled in a peaceful way, but HKPF declined. Afterwards, pro-democracy legislators held a press conference and declared there was a severe humanitarian crisis happening inside Polytechnic University and demanded Hong Kong Chief Executive Carrie Lam speak up and end the crisis immediately to avoid any serious consequences.[22]

At 9:00 am, an RTHK reporter preparing to relieve a colleague inside in accordance with procedures predetermined by the police went to the indicated place for swapping out. Riot police shouted at the journalist and ordered him to put his hands up while they checked his press ID and identity card. When the reporter claimed that he only wanted to go on duty, riot police refused to let him out and insisted that he had to leave by another route. He was escorted by the police as he was leaving. Other reporters of RTHK who passed the Cross-Harbour Tunnel and wanted to document the events unfolding at PolyU were likewise blocked and ordered to leave by the riot police. The police indicated that everyone inside PolyU would be charged with "participating in a riot".[23]

At 11:00 am, the police fired tear gas towards Queen Elizabeth Hospital which injured some protesters[24] and forced the hospital to suspend specialist services and to use plastic tape to seal its windows and doors.[25]

Police arrested 213 protesters in their dispersal operations across Kowloon that night, all of whom were charged with rioting.[26] On 8 June 2023, police said that said protesters had been grouped into 17 cases and tried by the District Court. As of that date a total of 112 individuals had been found guilty of rioting, of which 85 people were jailed between 29 and 64 months, four were sentenced to a training centre, and the remaining 23 were awaiting sentencing.[27]

• 
  Police using a water cannon truck
• 
  Volunteer first-aid personnel and medics helping injured protesters
• 
  Other protesters heading to PolyU to "rescue" trapped protesters
• 
  Protesters trying to break police cordon in Tsim Sha Tsui to get near the campus
• 
  Police firing tear gas at protesters attempting to reach the cordon

Riot police trapped protesters inside the university as the standoff continued, with students desperate to escape from campus. Some fled by ziplining from one of the university's bridges,[28] or in some cases, through sewers. The protesters reportedly had 'no way to leave'.[29] The number of protesters trapped inside the building was disputed, with police putting their number at around 80–100[30] while protesters claimed the number was around 200.[29]

Throughout the following days, more protesters from PolyU surrendered to police.[31] The siege continued into 23 November, with around 50 protesters remaining.[32] The campus's hygiene quickly deteriorated, and the protesters inside reported being mentally and physically weak.[33]

Amid dwindling numbers of protesters in the university, the police entered on 28 November to look for stragglers and to clear the premises of hazardous materials. After a two-day search that failed to find any holdouts, the police lifted the cordon on 29 November.[34] The university remained closed until the campus was deemed safe, even as petrol bombs and other weapons continued to be found on campus.[35] More than 4,000 petrol bombs including about 600 tied to portable propane bottles were discovered.[36][37] Around 1,300 people were arrested in and around PolyU over the course of the siege, and around 300 were sent to hospitals.[38][39]

On 15 May 2020, 14 people were formally charged with rioting, while another remained wanted by the police. All of these protesters were originally arrested during a police dispersal operation at the campus on 18 November 2019. In addition to the rioting charges, five of the group were charged with other offences, including possession of an offensive weapon in a public place.[40] On 15 January 2022, seven of the arrested were sentenced to jail terms between 38 and 40 months, while two who were 17 and 18 years old at the time of the offence were sent to a training centre.[41] Appeal bids by two of the group against their 38-month sentences were rejected by court on 23 March 2023.[42]

On 9 September 2022, a female student who had entered a guilty plea for rioting the preceding month was also sent to a training centre.[43] On 11 February 2023, Alvin Cheng was sentenced to three years and eight months in prison on a rioting charge added by prosecution mid-way through the trial; local media reported that seven others were sentenced to between 7 and 13 months for attempting to help protesters escape the besieged campus, three of whom had pleaded guilty to the perverting public justice charge.[44] On 22 March, the Department of Justice lodged an appeal seeking for tougher sentences for five protesters who had been sentenced to between 15 and 18 months in January for rioting near PolyU. The judge who had handed out the sentence had mentioned a plea deal of some defendants with the prosecution, which had led to their sentence being based only on a brief clash of eight minutes on 18 November.[45][46] A 20-year-old man was sentenced on 27 March 2023 to a training centre after having been found guilty of rioting in Yau Ma Tei to support the besieged protesters on 18 November 2019, when he was 17. He had written two mitigation letters. The judge said that he was a "demonstration of a young person" who had been "swayed by their peers".[47]

• 2019 November Shooting Incident in Sai Wai Ho
• Siege of the Chinese University of Hong Kong

• Media related to Siege of the Hong Kong Polytechnic University at Wikimedia Commons