The police in Norrbotten summarize the night in Piteå as an evening with a high level of intoxication and many people in the festival area.
Many young people, including many minors, were inside the festival.
Twelve people were taken into custody as a result of heavy intoxication.
In terms of reported crimes, the police have received two reports of rape.
No suspect is in custody, the police said on Saturday morning, and more information is not being released at this time.
Three cases of assault are also being investigated.
Other reports include violent resistance, violence against an official, violation of the Knife Act, minor drug offenses, theft of an electric bicycle and sexual harassment.
The police also fined a person who urinated in public, with the criminal classification of outrageous behavior.
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Watch police officer Thorbjörn Ebermark show the mobile drunken cell used during Piteå Dansar och Ler.
Photo: Jimmy Bäckström/SVT