11 November Students in CUHK began throwing objects onto the
East Rail line and
Tolo Highway in order to support a general strike in Hong Kong. Police set up a perimeter at the No. 2 Bridge. At 8:00 am, the police confronted protesters at No. 2 Bridge, and eventually dispersed them, cordoning off Tolo Highway to avoid further disruption.
12 November On the second day of the conflict, protesters continued to attempt to block traffic. Students again began to throw objects onto the railway tracks and blocked major roads nearby. Starting at 7:00 am, the police began a standoff with the protesters, who attempted to stop the police from clearing the roadblocks set on the bridge. Vice-presidents of CUHK attempted to negotiate with the police. However, the negotiations broke off as the police advanced and began firing tear gas into the campus, while the student protesters, in response, hurled bricks and petrol bombs at around 3 pm. In the evening, several CUHK alumni, including businessman
Ricky Wong, returned to CUHK to stand in solidarity with the student protesters. CUHK vice-chancellor
Rocky Tuan was at the scene and attempted to negotiate with police representatives; police responded by rejecting the request for negotiation and ordering Tuan to leave immediately, saying that he was not able to control the situation. Protesters also demanded the police release the students who had been arrested inside CUHK. At around 7:30 pm, while Tuan was still on campus, the police began firing tear gas at the protesters, who, in response, hurled a large number of petrol bombs, forcing the police to retreat from their initial position. At 10:00 pm, the police for a short time deployed water cannons, while protesters threw petrol bombs to stop them from advancing. The police issued a statement about 10 minutes later to announce that they would be retreating from campus to stop the situation from further escalating. Former university president
Joseph Sung Jao-yiu arrived at the campus on 10:30 pm in an attempt to deescalate the situation. To divert the police's attention, protesters instigated conflicts elsewhere in Hong Kong. Protesters marched into the
Festival Walk shopping centre in
Kowloon Tong after the mall closed early and set a giant Christmas tree on fire; some glass balustrades and doors were also smashed. A
China Mobile shop was set on fire in Causeway Bay. In Sheung Shui, a train was firebombed and objects were thrown onto the train track. In Mong Kok, police fired multiple tear gas rounds as protesters blocked roads and vandalised public infrastructure, such as traffic lights and switchboxes. In
Tin Shui Wai, protesters besieged and started a fire inside the police station. In
Sha Tin, a police van was lit on fire. A volunteer paramedic reported that at least 119 protesters were injured. The police announced that 142 people were arrested on 12 November. Police also reported that they had used about 1,567 canisters of tear gas, 1,312 shots of rubber bullets, 380 shots of bean bag rounds, and 126 shots of sponge grenades to disperse the protesters.
13–14 November After the confrontations at CUHK and other universities on 12 November, protesters turned the university campuses into strongholds. Supplies were delivered to them by supporters of the protesters from various districts in Hong Kong. Expecting the riot police to return, some of the protesters stayed in CUHK and slept in the car park and the sports grounds. In the morning of 13 November, protesters fortified the campuses by constructing roadblocks and barricades using bricks and furniture such as tables and chairs at major entrances near the university. Supplies from supporters, including medical bandages and food, were delivered to various universities in Hong Kong. A gym room inside CUHK was converted into a first-aid station. Protesters also practised throwing petrol bombs inside the campus, set up
caltrops, removed sports equipment such as
bows and arrows,
javelins, and rackets, and set up makeshift catapults. Media noted that protesters were recreating "medieval weapons". The police sent one of their boats to CUHK to evacuate a group of mainland Chinese students from the university, after they had expressed concerns for their safety at the campus; the police said the students had been unable to leave the campus by road due to obstructions. The
Taipei Economic and Cultural Office in Hong Kong sent representatives to CUHK and arranged for 85 Taiwanese students to return to
Taiwan.
15 November At 3:00 am, three masked protesters at CUHK held a press conference. They indicated an intention to reopen one lane in each direction of the
Tolo Highway as a symbol of good faith, demanding the government hold the
2019 District Council elections as scheduled on 24 November, release arrested people, and establish an independent commission of inquiry within 24 hours. In a statement, the CUHK Students' Union stated that they questioned the three protesters' plan to open the highway to traffic, and that none of their members participated in the press conference. Protesters cleared one lane in each direction at 6 am; however, the Transport Department kept the highway closed due to safety concerns. The highway was officially reopened at noon. Protesters blocked the highway again at 7:30 pm after Chief Secretary for Administration
Matthew Cheung rejected their demands. Protesters began to leave CUHK in the night, as divisions within the protesters showed up as to whether they should leave the campus. Some argued that the occupation of the university did not align with the fluidity the protesters had exhibited since the protests started in June. ==Aftermath==