Dutch Prime Minister Mark Rutte has condemned weekend riots against newly imposed coronavirus restrictions as "criminal violence".

Rioters attacked police and set cars and bikes on fire to protest against a curfew introduced on Saturday.

In the southern city of Eindhoven, protesters threw fireworks, looted supermarkets and smashed shop windows.

There were smaller protests in Amsterdam, and in some cities and towns around the country.

More than 200 people have been detained, police said.

"This has nothing to do with protest, this is criminal violence and we will treat it as such," Mr Rutte told reporters on Monday.