Police fired tear gas to disperse crowds of protesters who had gathered in Yuen Long, Hong Kong on Saturday to demonstrate against a recent gang attack.

Several thousand protesters defied a police ban to converge in Yuen Long, where suspected triad gang members attacked protesters and commuters at a train station last weekend.

Read more at
https://www.thestar.com.my/news/world/2019/07/27/trouble-feared-as-hong-kong-activists-return-to-scene-of-triad-attack/