“All the injured are part of an underworld faction,” said Anders Kristersson of the Malmö police to local paper Sydsvenskan.
According to the paper, a woman was brought in to the emergency room after being hit over the head with a blunt object, following an argument with some gang members.
The woman is previously known to the police in connection to narcotics crimes and fraud.
She reportedly had a grievance against some street gang members from the city and enlisted the help of a male acquaintance to rough them up with a knife.
The fight kicked off some time around midnight in the Fosie district of the city.
On Thursday morning police were still unclear on how many had been stabbed.
The fight had erupted near the police station and officers quickly cordoned off the area to carry out a forensic investigation.
Several people were brought to the emergency room, where there was another altercation, making staff feel threatened enough to press the alarm button.
One man had sustained a serious stab wound to the stomach and underwent surgery over night.
His injuries are not believed to be life-threatening, according to the paper, and he is currently under suspicion for assault.
Police later apprehended another man, at the moment under suspicion of aggravated assault.
“Though this may come to change,” said Erik Jeppson of the Skåne police to Sydsvenskan.
All involved were previously know to police, according to the paper.