STOCKHOLM -- Swedish police say they are looking for perpetrators involved in the weeklong riots in Stockholm suburbs that have resulted in some 220 reported crimes.

Summing up a week of violence and destruction, police spokesman Kjell Lindgren says around 60 people have been detained, suspected of various crimes, although most of them have been released awaiting charges.

He says the police investigation shows both organized 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.

The unrest in the Stockholm suburbs, which has now largely subsided, was sparked by perceived police brutality after officers shot and killed a knife-wielding man who had locked himself in his apartment.

Earlier on HuffPost:

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  • Policemen secure an apartment building after youths rioted in Husby, northern Stockholm on May 20, 2013. Youths in the immigrant-heavy Stockholm suburb of Husby torched cars and threw rocks at police, in riots believed to be linked to the deadly police shooting of a local resident. An apartment building had to be evacuated for an hour during the night after fire spread inside a garage, and shops and schools in the low-income neighbourhood had their windows crashed. (FREDRIK SANDBERG/AFP/Getty Images)

  • Police officers stand guard in a street during a riot in Stockholm, Sweden, Monday, May 20, 2013. (AP Photo Johan Nilsson)

  • Police officers stand guard in a street during a riot in Stockholm, Sweden, Monday, May 20, 2013. (AP Photo Johan Nilsson)

  • Policemen extinguish burning cars after youths rioted in Husby, northern Stockholm on May 20, 2013. (FREDRIK SANDBERG/AFP/Getty Images)

  • A burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A Police officer stands guard as a burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A police officer looks on as a burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A burned-out van is prepared for removal after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • Residents look on as a burned-out van is prepared for removal after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A resident looks on as a burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A burned-out van is towed away after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A burned-out van is prepared for removal after youths rioted in Husby, northern Stockholm on May 21, 2013. (JONATHAN NACKSTRAND/AFP/Getty Images)

  • A boy walks past a burnt out car after youths rioted in Husby, northern Stockholm on May 20, 2013. (FREDRIK SANDBERG/AFP/Getty Images)