Protesters clashed with police in Hong Kong on Saturday as thousands rallied in spite of a police ban on demonstrating.
Police put blue dye in water cannons, intended to stain protesters and mark them out for arrest later.
The Hong Kong protests, sparked by a proposed extradition bill from mainland China, have been going on for thirteen weeks.
As flashpoints erupt between protesters and police in Hong Kong, water cannons filled with blue dye are being turned on the protesters.
There were flashpoints between the police and protesters on Saturday, with the police deploying tear gas and water cannons, while protesters threw bricks and molotov cocktails, setting fire to barricades.
Police put blue dye in the water cannons directed at protesters, coating the road in a blue wash.
Last week Hong Kong police said it had arrested 86 protesters, including a 12-year-old child. »