Protesters in Hong Kong have gathered at a small town where gangsters attacked commuters at a train station last weekend.
Several thousands defied a police ban to march in Yuen Long on Saturday afternoon.
Many chanted anti-police slogans, voicing their anger at police for not better protecting the public from the triad raid.
Security has also been increased outside the local police station.

Trump says US could restart Iran strikes 'if they misbehave'
Israeli military urge southern Lebanon residents to evacuate
Russia's Primorsk port hit as Ukraine launches wave of drone strikes
Israel court extends detention of Gaza flotilla activists
At least six dead, thousands displaced as heavy rains hit northeastern Brazil