Dutch police used tear gas and water cannon to disperse violent anti-immigration protesters in The Hague on Saturday, BBC reported.
Thirty people were arrested and two officers injured as large groups of people clashed with police, with some throwing rocks and bottles.
Around 1,500 people blocked a highway crossing the city, while a police car was set on fire, the Netherlands news agency ANP reported, citing police figures.
Prime Minister Dick Schoof condemned the "shocking and bizarre images of shameless violence", saying it was "completely unacceptable".