The flight cancellations will seriously impact passenger services and may affect air cargo operations.
Legislators and journalists were invited to witness the display of extreme crowd control tactics, which Amnesty International warned last week could lead to serious injuries if misused within Hong Kong's confined spaces.
Protesters surround banners that translate to "Those charge to the street on today is courageous!" and "Release all the detainees!" during a sit-in rally at the arrival section of Hong Kong's worldwide airport.
Thousands of people remain at the airport which is one of the world's largest global terminals, BBC reports.
For many hours people staged a sit-in at the airport, the second since Friday, to attract global attention to their cause.
More than two months of mass demonstrations in Hong Kong have given way to routine clashes between protesters and police.
At one stage police stormed some underground train stations, firing tear gas and arresting protesters.
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Volunteers yesterday handed out 10,000 posters featuring a photo of Nora in Kuala Lumpur and surrounding areas. While officially treating it as a missing person case, police say they have not ruled out other possibilities.
Hong Kong police fired tear gas at protesters Sunday who staged demonstrations in two locations in the territory - the Sham Shui Po area and a main shopping district in the Causeway Bay area. At one point, protesters blocked the entrance to a plaza to prevent police from entering.
Organisers of the protests have called for a million people to take over the airport today as a reaction for alleged police brutality.
Police have arrested more than 600 people.
Police released a statement, condemning the "violent acts".
Sunday's protests come after a night of cat-and-mouse demonstrations around the city, with protesters taking their mantra of flexible action - "Be Water" - to new heights.
Protesters filled both arrival and departures terminals of the airport Monday, holding up signs against police violence and chanting, "Dirty cops, return her eye".
It is the eleventh week of the pro-democracy movement.
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A few hours after the mosque attack, police discovered the body of a young woman at what they said was the suspect's address. The attacker was said to have been affected by extremist thoughts and have hailed terror attacks elsewhere in the world.
Raab condemned "violent acts by all sides but emphasised the right to peaceful protest", and "underlined that the violence should not cloud the lawful actions of the majority", the United Kingdom foreign office said in a statement.
"We hope the world knows that Hong Kong is not the Hong Kong it used to be, one protester told the Associated Press".
Not all are supportive of the movement, which began in June against an extradition bill that would have allowed Hong Kong residents to be sent to the mainland to stand trial.
Britain's foreign minister Dominic Raab on Friday emphasised the right to peaceful protest in a phone call with Lam, prompting a rebuke from China.
The entry of the working class of Hong Kong into the protest movement has not only provoked fears in Beijing but also concerns in Washington and among USA allies amid a resurgence of the class struggle internationally.
Hong Kong is at a critical juncture after 10 straight weeks of anti-government protests, Yang said, stressing that stopping the violence, and restoring order is the priority task for Hong Kong now.
People's Bank of China sets yuan midpoint at 7.0211
This photo illustration taken on January 6, 2017 shows Chinese 100 yuan notes and one USA dollar notes in Beijing. Stocks traded lower on Friday amid fears of a renewed US-China trade conflict after the Trump announcement.