The Hong Kong International Airport has limited its express train services ahead of the latest series of planned protests targeting the airport.
In a statement, authorities said only people holding valid flight tickets will be allowed to enter the terminal, with boarding from certain stations suspended for the day.
Officials also warned against using fake boarding passes, air tickets or flight booking information to enter the airport's terminal buildings, saying that "such behaviour could amount to forgery or using a false instrument".
It comes after a night of violent street clashes between the riot police and protesters.
St. Petersburg region port, oil terminal hit in Ukrainian drone attack
Trump extols America, rails at communism in US 250th celebration
Zelenskyy denies Russian capture of key eastern city Kostiantynivka
Keiko Fujimori declared winner of Peru presidential race
Ukrainian rescuers clear rubble as Kyiv mourns 30 killed in Russian attack
