A preliminary investigation has been launched into the incident, which is initially classified as attempted murder.

- Some form of shelter must have been used, which is why it is classified as such, says Maria Linné, communicator at the police's regional command center.

Prosecutors will decide after questioning whether the suspect should be arrested.

The injured woman has been taken to medical care, the injury situation is unknown, but according to the police, she was conscious when they arrived at the scene.