Swedish police say they are looking for perpetrators involved in the weeklong riots in Stockholm suburbs that have resulted in about 220 reported crimes.
Summing up a week of vandalism and occasional violence, police spokesperson Kjell Lindgren said around 60 people have been detained, suspected of various crimes, although most of them have been released awaiting charges.
He said the police investigation shows both organised rioters, seasoned criminals and young teenagers have been involved in burning cars, smashing windows and throwing rocks at police in the low-income, predominantly immigrant areas of the Swedish capital.
Residents said the unrest was in part sparked by perceived police brutality after officers shot and killed a knife-wielding man who had locked himself in his apartment.
The unrest in Stockholm has now largely subsided, but in the central city of Orebro, several cars were put on fire on Sunday during a second night of vandalism.