At 20.20, the alarm about the quarrel was received, where the shelter should have been used.

No one has been arrested, but police are on site with a number of patrols.

- We do not know how many people have been involved in the quarrel or why it started.

We are on site and investigating the incident, including interrogation of possible witnesses and we are looking for the shelter that may have been used, says Rickard Lundqvist, press spokesperson at the police.

When the police arrived at the scene, three people were found with injuries, two of whom had stab or cut injuries.

Both were taken by ambulance to hospital.