It is unclear how badly injured the person is.
The alarm came in at 18.10 on Friday.
- We are still looking for suspected perpetrators.
We have held interrogations with witnesses and made a technical investigation at the crime scene, says Bryngelsson at 22 o'clock.
The police do not want to comment on whether anyone has been arrested.
The incident is classified as attempted murder and aggravated use of means of subsistence.