The victims are a man and a woman, both in their 35s, and a girl under 15 years old. None of them have been seriously injured, according to the police.
There are reports that tools were visible, says the police's press spokesperson Evelina Olsson and clarifies that it is not about firearms.
No suspected perpetrator has been arrested.
The suspects are said to have left the scene before we got there.
The police were alerted to the scene at 5 pm on Thursday. The case is also classified as serious assault and unlawful threats.
Another brawl occurred in another district, Möllevången, at 3:30 pm where a man in his 50s was taken to hospital by ambulance. He has not been seriously injured either.
The police are investigating serious assault. No one has been arrested.