Wires

UPDATE 2-Hong Kong protesters shoot arrows, hurl petrol bombs in campus clash

Jessie Pang and Scott Murdoch

* Use of bow-and-arrows new tactic by protesters

* Chinese soldiers make rare appearance to help clear streets

* Violence at universities some of the worst in months of protests

* City on edge as over five months of demonstrations rumble on (Updates, adds detail)

HONG KONG, Nov 17 (Reuters) - Protesters shot arrows and lobbed petrol bombs at police on Sunday as fresh violence erupted around a besieged Hong Kong university campus, with activists braced for a possible final police push to clear them after fiery clashes overnight.

Police countered with dyed jets of liquid from water cannon after several protesters were seen firing bows from rooftops at the Hong Kong Polytechnic University amid some of the most dramatic scenes in over five months of protests.

A police media liaison officer was hit in the leg by an arrow, police said in a statement. He remained conscious and was sent to hospital.

Huge fires had lit up the sky at the university in the heart of Kowloon district overnight as protesters hurled petrol bombs, some by catapult, and police fired volleys of tear gas to draw them onto the open podium of the red-brick campus.

After a few quiet hours as protesters slept on lawns and in the university library, police fired fresh rounds of teargas shortly after 10am. Activists threw petrol bombs in return, some igniting trees outside the campus.

Hours earlier, squads of Chinese soldiers dressed in shorts and T-shirts, some carrying red plastic buckets or brooms, emerged from their barracks in a rare public appearance to help residents clear debris blocking key roads.

As fresh violence erupted on Sunday, some soldiers in a base close to the university were seen monitoring developments with eye glasses, some dressed in riot gear with canisters on their chests.

Parts of the campus looked more like a fortress with barricades and black-clad protesters manning the ramparts with improvised weapons-like bricks, crates of fire bombs, and bows and arrows at the ready.

"We are not afraid," said a year-three student Ah Long, who chose not to disclose his full name. "If we don't persist, we will fail. So why not (go) all in," he said.

The campus is the last of five universities to remain occupied, with activists using it as a base to continue to block the city's central cross-harbour road tunnel.

The presence of China's People's Liberation Army (PLA) soldiers on the streets, even to help clean up, could stoke further controversy over Hong Kong's autonomous status at a time many fear Beijing is tightening its grip on the city.

Hong Kong did not request assistance from the PLA and the military initiated the operation as a "voluntary community activity", a spokesman for the city's government said.

Pro-democracy lawmakers condemned the PLA's actions in a joint statement, warning that under the city's Garrison Law the military must not interfere in local affairs unless it was asked by the government to help with disaster relief or public order, government-funded broadcaster RTHK reported.

The Asian financial hub has been rocked by months of demonstrations, with many people angry at perceived Communist Party meddling in the former British colony, which was guaranteed its freedoms when it returned to Chinese rule in 1997.

Beijing denies interfering and has blamed the unrest on foreign influences.

Clashes between protesters and police have become increasingly violent in the Chinese-ruled city, which is grappling with its biggest political crisis in decades.

The demonstrations pose the gravest popular challenge to Chinese President Xi Jinping since he came to power in 2012.

Xi has said he is confident the Hong Kong government can resolve the crisis. Until Saturday, Chinese troops in the city had remained inside their base during the protests.

Chinese state media repeatedly broadcast comments made on Thursday by President Xi, in which he denounced the unrest and said "stopping violence and controlling chaos while restoring order is currently Hong Kong's most urgent task".

Efforts on Saturday to clear blocked roads followed some of the worst violence seen this year after a police operation against protesters at the Chinese University of Hong Kong on Tuesday.

The authorities have since largely stayed away from at least five university campuses that had been barricaded by thousands of students and activists stockpiling makeshift weapons.

Many protesters appeared to have left the campuses by late Saturday but Hong Kong's Cross-Harbour Tunnel was still blocked by protesters occupying Polytechnic University.

Earlier, hundreds of pro-China demonstrators gathered by the city's legislature and police headquarters, waving Chinese and Hong Kong flags.

Some held up posters reading "Police we stand with you", while others chanted "Support the police". Pro-China protests have so far attracted much smaller numbers than those angry at Beijing.

By late afternoon on Saturday, PLA soldiers had left the streets outside Baptist University beside their barracks in Kowloon Tong.

Chinese troops have appeared on Hong Kong's streets only once since the 1997 handover, to help clear up after a typhoon in 2018. It was not clear how many were involved in Saturday's operations.

The PLA garrison in Hong Kong said that when residents began cleaning, some troops "helped clear the road in front of the garrison gate".

In August, Beijing moved thousands of troops across the border into Hong Kong in what state news agency Xinhua described as a routine rotation. (Additional reporting by James Pomfret, Joyce Zhou, Kate Lamb, and Tom Lasseter; Writing by Greg Torode, Josh Smith and Anne Marie Roantree; Editing by Jan Harvey and Sam Holmes)