Watch: Demonstrators defy face mask ban on Halloween in fresh protests in Hong Kong

Halloween protests in Hong Kong were met with tear gas and pepper spray as demonstrators flouted the no-mask rule, Hong Kong Free Press reported. Some reports also suggested that Halloween revellers were mixed with the protesters, causing chaos.

Services at some stations of the MTR rapid transit system in Hong Kong were also affected.

Protester gathered at the Prince Edward Station to mark two months of the “831 incident”. On August 31, Hong Kong riot police had stormed the station, assaulting and injuring passengers. It was believed that the incident resulted in some casualties, but MTR has not released complete CCTV footage from the night despite being asked several times.

Many videos of the police firing tear gas shells and using pepper spray to disperse the crowd surfaced on the internet. In one particular video, a police officer is seen macing a man point-blank.

Protesters also started fires in the street that were later put out by firefighters.