Police were alerted about the incident at 21.30 on Sunday evening.

"There are two people injured and we have launched a preliminary investigation into suspected murder attempts," says Pontus Sandulf, police officer at the Stockholm Police.

Do you know what caused the damage?

- There is nothing I want to comment on right now.

The police represent

According to Aftonbladet, the persons must have been found in a stairwell, but the police are sorry for the case.

- We have blocked the site and will do a technical survey. That's all I'm going to say right now, says Pontus Sandulf.

This article will be updated.