Hong Kong's Airport Authority also published a half-page notice in newspapers urging people to "love Hong Kong" and not to block the airport.
Fallout from the protests have also hit major Hong Kong corporations. Different demonstrators had arrange roadblocks with bamboo scaffolding. More than 700 have been arrested since the demonstrations began in June.
Hong Kong police have drawn their guns and one fired a warning shot into the air after they were attacked by protesters with sticks and rods.
Anti-government protesters in Hong Kong joined hands to form human chains across the city today.
Officers were seen with drawn sidearms as protesters clashed with police in the district of Tsuen Wan after a rally at a nearby sports stadium. Instead, they say, they are primarily fighting to keep Hong Kong's special status and to win democracy for their city in the face of an assertive, intolerant Beijing.
Reuters is reporting that police arrested 29 people overnight after officers sprayed tear gas Saturday to break up a crowd.
Protesters are demanding the dismantling of the CCTV cameras installed in the Quan Tung Industrial Area.
During a daily briefing, Chinese Foreign Ministry spokesman Geng Shuang said China respects Canada's decision, but countered it with a Confucius quote: "A gentleman is open and poised; a petty man is unhappy and anxious". Baton-wielding officers had been caught on video the utilize of power on demonstrators to grab abet have confidence an eye on of the airport.
One protester, Keith Fong, 20, described to ABC News how he changed into once arrested and allegedly bodily assaulted by police for shopping laser pointers.
The recent Hong Kong protest movement has entered its twelfth week. The demonstrations were initially sparked by a now-suspended bill that would allow fugitives to be extradited to China, where there is a separate legal system.
"We sincerely call for all young people who love Hong Kong in their heart not to participate in or support any action that disrupts the airport's normal operation or damages the airport's worldwide image", the ads read, adding that airport disruption could lead to the unemployment of around 100,000 people who depend on the airport to make a living. The calm continued through the week, with protesters peacefully creating a human chain across the city on Friday - the 30th anniversary of the Baltic Way human chain.
Simon Cheng disappeared after visiting the neighbouring city of Shenzhen on 8 August and was placed in administrative detention by police.
But, Brown added, none of those people were closely linked to the protesters that were on the streets on Saturday.
The Baltic Way was a peaceful protest occurring in Soviet-occupied Estonia, Latvia, and Lithuania on August 23, 1989.
It was the first time water cannons had been used in a protest in the past three months, although protesters themselves were not targeted, a Hong Kong police spokesperson tells CNN.
But the protest group criticised that the individuals invited to this meeting will not be able to produce a channel for genuine dialogue with the people.
The Hong Kong Way is the latest event organized in a wave of protests that has lasted for almost three months already. He was detained for 15 days in Shenzhen, just across the border from Hong Kong, for allegedly violating public security management regulations, according to police there. China plans to turn Shenzhen into an global financial center.