Hong Kong police at Mong Kok police station took cover behind netting and riot shields, as angry protesters gathered nearby.

The protesters were said to be locals angry at alleged police brutality.

Some of them threw projectiles at police, including red paint -- a traditional method of warning used by triad gangs in Hong Kong.

Hong Kong Anti Extradition Protest 1st September 2019. Mong Kok Police Station, police take cover behind a net outside Mong Kong police station in order to protect themselves from possible projectiles thrown by angry residents who have gone to the police station to show their anger at police brutality.

Hong Kong Anti Extradition Bill Protest 1st September 2019. Police taking cover under riot shields as angry residents had thrown some projectiles including red paint. Red paint is seen as a traditional method of warning from triad organisations in Hong Kong.