About 30 people are said to have been at the scene, but it is unclear how many took part in the fight.
Police were alerted to the scene after a man was injured in the back with a sharp object.
- We get tips about a suspected perpetrator in another place. When driving there, we find another man who was injured in the wrist with a sharp object, says Matilda Isaksson at the police in the Central region, to the newspaper.
A person has been arrested on suspicion of attempted murder and aggravated assault. The two injured are men in their 20s, both had to be taken to hospital by ambulance.