Hong Kong: School students staged a sit-in and hundreds of office workers stopped traffic marching through the city on Wednesday as Hong Kong reacted with shock to a police officer shooting a student in the chest during chaotic scenes a day earlier.

Multiple large rallies were held on Wednesday night at Tsuen Wan, where the student was shot, in Causeway Bay on Hong Kong island, and a shopping mall in Sha Tin.

The injured student, Tsang Chi-kin, 18, was in a stable condition after surgery to remove the bullet in his lung.

He was arrested for assaulting a police officer, as Police Commissioner Stephen Lo said the officer who fired his gun had acted in self-defence.