The alarm about the brawl came at 20:00 on Easter Day. It is not entirely clear where the assault took place.
They mention a staircase and they mention an apartment. It is possible that there were more than one crime scene, says the police's press spokesperson Evelina Olsson.
The suspected man was arrested in the nearby area, but it is not certain that he is suspected of having injured all four men.
It is very unclear in how many cases he will be suspected.
According to media reports, it is a number of neighbors who have been fighting with each other, but the police do not want to comment on that.
The injured men were taken to hospital by ambulance. At least one of them was injured by a sharp object.
According to Region Skåne, a 40-year-old man is seriously injured, while a 45-year-old man has minor injuries. There is no information about the condition of the other two.
We have patrols at the hospital who will talk to the injured, says Evelina Olsson.
Forensic technicians have been sent to the scene. The police are also going door-to-door in the area.