In addition, a woman was slightly injured.
The incident is believed to have occurred in a villa, and a 39-year-old man has been arrested on suspicion of attempted murder, aggravated weapons offences and aggravated trespassing. According to police, the arrested man is one of the three injured.
"Three are injured, two seriously. We are working with several police patrols in the area," said Gustav Belin, police commander, during the night.
According to police, this is an "isolated incident" in which the people involved are known to each other. There is no danger to the public.
There has been some kind of commotion. The perpetrator was stabbed and another man was shot.
Technicians have been working at the scene overnight and police are looking for witnesses to the shooting.
"We are working to find out what happened in the home and will hold an interview as soon as possible given the extent of the damage. There has been shooting, but it is an isolated incident and the people involved are known to each other," says Public Prosecutor Anna Kristenson in a statement on the Prosecution Authority's website.
