"The Hong Kong community has been suffering from the acts of violence perpetrated by a small group of individuals lately".
Hundreds of other protesters who gathered at a police station in the tourist hotspot Tsim Sha Tsui were also dispersed by police with tear gas.
North Point was also the site last week of a fight between wooden pole-wielding men and protesters who defended themselves using makeshift shields and traffic cones.
"The area around the Sham Shui Po police station once again turned to a battleground on Sunday afternoon as scores of anti-riot police fire volleys of tear gas at brick-throwing anti-government demonstrators who had again besieged the station", government broadcaster RTHK reported.
It warned that staff deemed to support Hong Kong's "illegal protests" were banned from flights landing in mainland China or traveling through its airspace. "The police. have been targeting the people of Hong Kong, and ignoring their safety".
Many of this summer's protests have descended into clashes with police.
Hong Kong pro-democracy activists have used a digital advertising campaign aimed at prompting the United Kingdom to take action to protect rights in the former colony, after Beijing began a violent clampdown on the protests that were initially triggered by extradition proposals and have widened to demand broader democratic reforms.
Though China has not yet officially announced plans to mobilise the PLA, Wednesday's comments appear to be the most explicit reference to Chinese military intervention in the city since its handover.
Critics said it would undermine Hong Kong's legal freedoms, and could be used to silence critics. Even though Hong Kong authorities agreed to suspend the bill, demonstrations continued, with calls for it to be fully withdrawn.
She added that the Chinese government is responsible for the foreign affairs relating to the Hong Kong Special Administrative Region in accordance with the Basic Law or the Constitution of the region. This is the tenth consecutive weekend of pro-democracy demonstrations in Hong Kong.
Experts say the crisis is compounding the economic downturn Hong Kong was already experiencing as a result of being caught up in the US-China trade war.
A pro-Beijing newspaper published a report on Thursday, including photos and details, about Julie Eadeh, the political unit chief of the US consulate general in Hong Kong, meeting with Joshua Wong, one of the protest movement's leaders, and others. What began as a series of marches against a now-suspended extradition law has since snowballed into a larger anti-government campaign, calling for greater democracy and rebelling against China's control over the enclave.
"These are the people of Hong Kong asking their government to listen to them, so it's always appropriate for every government to listen to their people", Pompeo told reporters while en route to Thailand.
"I don't think we should just sort of make concessions in order to silence the violent protesters", Lam said. The US House speaker Nancy Pelosi on Monday praised the radical protesters, saying they "are sending a stirring message to the world".