Police laid siege to Hong Kong Polytechnic University on Sunday night, warning people to leave or face action for “taking part in a riot”.
That came after an extremely violent day that saw the two sides battling each other around the strategically located campus in Kowloon.
At 10pm, a white Ford sedan without licence plates tried to ram a group of police officers just outside the Gun Club Hill barracks on Austin Road. An officer fired one live round at the vehicle and another one shot it with a rubber bullet. The car stopped and then took off towards Tsim Sha Tsui, police said.
The normally serene neighbourhood around the campus on Austin Road turned into a war zone, with masked protesers occupying PolyU, waging pitched battles against riot police.
A police source said dozens of people had been arrested at the campus, and hundreds of others were estimated to be inside. Mass arrests were expected.
Police said that most of the dangerous materials they had seized from arrested protesters over the past few days were stolen from PolyU laboratories.
The materials were highly flammable and could be used to make explosives, according to police. Police said it was one of the reasons they had to take back the occupied campus.
Both sides stepped up their use of violence. Protesters shot arrows and threw petrol bombs and bricks – sometimes from catapults mounted on the roof of campus buildings. Police fired a large quantity of tear gas and deployed two water cannons and armoured vehicles.
Amid the chaos, a 39-year-old sergeant handling media liaison was injured by an arrow, which pierced the inner back of his left leg and almost came out the other side. He later received surgery to have the arrow head removed.
At nightfall, the battleground shifted to the other side of the campus, near the blocked Cross-Harbour Tunnel at Hung Hom. The two sides battled to gain control of a strategically located footbridge overlooking the highways to the tunnel. The footbridge also connects the Hung Hom railway station to the campus.
Protesters first put up bricks to slow the police advance. Later they set flammable material and other debris on the footbridge ablaze, sparking a huge bonfire and causing several explosions.
The whole footbridge burned uncontrollably, with dense clouds of smoke billowing from it. Blazing debris was seen falling on the highway below.
Firefighters managed to put the blaze out after about 30 minutes. But protesters soon torched another flyover that ran parallel to the footbridge and was even closer to the mouth of the tunnel.
A police armoured vehicle sent to take the flyover was attacked by a crowd and set on fire. The driver had to put the vehicle in reverse, rumbling away from those who kept throwing petrol bombs at it. It was not immediately clear if anyone was injured.
Police on Sunday night issued a statement describing what happened at PolyU as a riot.
“Anyone who enters or stays on the campus and assists the rioters in any way will risk committing the offence of ‘taking part in a riot’,’’ the statement said.
It asked people staying on the campus to leave. Police set up checkpoints and would only allow people to leave through a designated exit. All of them, including journalists, coming from the campus had their bags searched. This caused tension between police and some reporters.
The police public relations branch had warned that anyone who left the campus without press credentials would be arrested, according to the Hong Kong Journalists Association.
The identity of the masked protesters remained unclear, but many were apparently outsiders who had no real connection with the university.
PolyU issued a statement condemning the behaviour of those occupying the campus and urged them to leave immediately.
“The PolyU campus has been occupied by activists and has been severely and extensively vandalised over the past few days. The unlawful activities and acts of violence inside the campus and in its vicinity have been escalating, including damage to a number of laboratories on campus with the dangerous chemicals inside being taken away,” it said.
It called on all its teaching staff and administrators to persuade students who were still staying in the campus to leave.
“We understand that our students are very concerned about the current social issues. However, in striving for one’s goal, one must always act with calmness and rationality,” it said.
Sunday’s violence was in sharp contrast with Saturday, when hundreds of volunteers and local residents came out to clear roadblocks. They managed to clear most of the roads with only some minor skirmishes.
By Sunday, PolyU was the last stronghold occupied by masked protesters following a week of escalating violence. The Cross-Harbour Tunnel linking Hong Kong Island to Kowloon had been blocked since Wednesday night – the longest forced closure in its history. Its toll booths were torched and debris strewn all over the vehicle lanes.
On Sunday morning, dozens of volunteers tried to clear roadblocks on Austin Road near the northern part of the PolyU campus. But they met stiff resistance as a group of masked men threw bricks at the unarmed volunteers. Police arrived but they were met with petrol bombs. Soon rounds of tear gas were fired and the conflict quickly escalated.
In front of Rosary Church and the Gun Club Hill barracks of the People’s Liberation Army, riot police and masked protesters waged battles.
Police called in two water cannon trucks and two armoured vehicles and made several attempts to breach the defence line.
Each time they were met with stiff resistance. The protesters scattered sharp spikes and bricks on the ground. From the commanding height of the campus rooftop, they thwarted the police advance with a hail of petrol bombs and projectiles.
Among those on the front line of the confrontation was salon worker Tsang, 20, who pledged to stay until the bitter end – meaning police storming in and arresting him.
“Of course I am worried about my safety. But we have sacrificed a lot already, with so many protesters having been arrested. We just can’t stop,” he said.
“I know the risk. But I am not leaving.”
Clashes have mostly been concentrated on the Kowloon side of the city, apart from the main battleground of Hung Hom around PolyU, Mong Kok and Yau Ma Tei also saw confrontations.
The Hong Kong side was quieter. The University of Hong Kong issued a statement saying conditions around its main campus and Centennial campus had improved, but the damage to facilities would take some time to repair. It advised staff to work from home if possible and avoid the university.
The university said it would set up identity checks at entrances and exits to all of its campuses, and at building entrances. Baptist University also put in place similar controls.