The alarm came in at 4.40pm on Wednesday.
According to the police, the attack took place indoors in an apartment and is classified as serious assault
The victim has been beaten with some kind of weapon, probably a stabbing weapon, and is taken to hospital by ambulance.
- We carry out a technical investigation, record any witnesses and knock on the door next to the apartment where the serious assault allegedly took place, says Pelle Vamstad.
At 6:15 p.m., no one had yet been arrested in the case.
Are the victim or perpetrators known to the police?
- I don't know that at the moment, says Pelle Vamstad.