All flights departing Hong Kong International Airport were canceled in the wake of massive protests.
Early Monday morning, thousands of protesters gathered at the airport to express their outrage.
It comes after another night of violent clashes between pro-democracy groups and riot police who pursued protesters into subway stations.
Before Monday, the protests at the airport have not been disruptive, with demonstrators only chanting to arriving passengers.
But unlike in previous demonstrations, protesters were filling both the arrivals and departures halls
Airport officials struggled to keep operations running smoothly, though the crowds remained largely cooperative.
In the city, riot police were recorded firing tear gas in enclosed environments and at close range.
At least nine people were injured in the clashes.
More video shows police chasing protesters and throwing people down on the ground.
Demonstrators have accused police of brutality and acting with unwarranted force.
But officials have said, they’re only cracking down on illegal and violent protesters.