Denmark ? Copenhagen police arrested dozens of people early Sunday in a third straight day of unrest triggered by the eviction of squatters from a disputed youth center.

Small groups of protesters threw rocks at police and set fire to trash bins and barricades, but the violence did not escalate into the full-scale riots of the two previous nights.

“We are very happy that the situation was so quiet,” police spokesman Lars Borg said. “The people who want to demonstrate have been more … aware that the things they are doing are not the right things to do.”

More than 30 people were arrested near an abandoned building that had been a center for young leftists and punk rockers after protesters built barricades on a major street and set them on fire around 3 a.m. local time, police said.

In all, 643 people have been arrested, including 140 foreigners from Europe and the United States, since the clashes started Thursday.