Peter Persson, officer on duty in the Bergslagen police region, says that the alarm came shortly after 8:30 p.m.

- We are working full time.

It will be classified as a serious crime of violence.

We'll see how far we get tonight, he says.

One person has been taken to hospital, and has minor injuries, says Persson.

The police do not want to say what type of violent crime it is and if there are any suspects at this time.

According to Persson, the police will probably say more about the incident only on Thursday.