Authorities in Denmark arrested violent protesters for a third straight night in Copenhagen, but the situation overall was calmer than in rioting Thursday and Friday.

The demonstrators are angry over the eviction of squatters from a vacant 19th century theater that has been used for more than 20 years as a make-shift youth center.

It is not clear if more demonstrations are planned for Sunday.

More than 600 people have been arrested since Thursday when some protesters began throwing Molotov cocktails and stones at police, and setting fire to cars and buildings.   Most of the detainees are teens and young adults.  Police say a number of foreigners are among those involved in the unrest.

Saturday, Copenhagen police searched homes in the areas (Noerrebro and Christiania) where the riots occurred looking for people involved in the clashes.

The unrest began when authorities moved to carry out a court order obtained by the building's new owners to clear squatters from the so-called "Youth House."  

The Copenhagen riots have drawn sympathizers and counter-culture supporters from Europe, and the United States.  Reports say leftist activists, anarchists and punk rockers are among those who have joined the squatters' cause.

Danish officials say the riots are the worst to occur in the Scandinavian country since 1993 when street violence erupted due to the outcome of a European Union referendum.

Some information for this report provided by AP, AFP and Reuters.