Thousands of protesters blocked roads and public transport links to Hong Kong airport on Sunday in a bid to draw global attention to their fight for greater democracy for the Chinese-ruled city which is facing its biggest political crisis in decades.

Passengers entered and left the terminal freely and planes were taking off and landing but trains were suspended and approach roads to the airport impassable as protesters erected barricades and overturned trolleys at the airport and in the nearby new town of Tung Chung.

The MTR subway station was closed and demonstrators smashed CCTV cameras and lamps with metal poles and dismantled station turnstiles. Police appeared to be running in all directions and made several arrests outside the station.