Hong Kong: Police descended on Hong Kong train stations on Monday morning, making one arrest as protesters tried to block train doors. A student strike and general strike are expected to follow.

Pro-democracy protesters leave after riot police arrive outside the airport in Hong Kong. Credit:AP

At Lok Fu station a man was arrested and taken away by police, who tackled protesters trying to stop train carriage doors from closing by using umbrellas. The police operation tried to stop a repeat of the shut-down of large parts of the train system that occurred during the last general strike in July.

Hong Kong’s political crisis was expected to worsen as university and school students scheduled to return to class after the summer holidays instead plan to strike.

Hong Kong’s chief secretary Matthew Cheung warned that the school student strike was "extremely irresponsible".