Pro-democracy campaigners have begun a sit-in at Hong Kong International Airport that could last for days.
Demonstrations have been taking place across the Special Administrative Region since early June, which were initially against a controversial extradition bill and have since expanded into a movement against influence from mainland China.
Protesters say they are targeting the airport in order to promote their message to arriving passengers.
Images and videos being shared on Twitter show hundreds of protesters, dressed in black, sitting on the floor of the airport. Many are using laptops, and no violence has been reported.
Organisers say they expect thousands may take part.
The protest began at 1300 local time on Friday, with protesters distributing leaflets in the arrival hall.
Hundreds of flights out of Hong Kong were cancelled on Monday due to a city-wide strike that brought many transportation services to a halt.
News agency Reuters is currently running a live stream from inside the airport: