The person was arrested late on Tuesday evening after the violence, where an employee of Region Västernorrland was attacked with a sharp-edged object. The 30-year-old man was later arrested on suspicion of attempted murder.
But at noon on Thursday, the police announced that the man was now set free.
"The person has been written off from the investigation," says Josefine PERMING-Tengqvist, head of the police department for serious crimes, and does not want to go into further detail why he was written off.
The investigation is now continuing with, among other things, further interrogations and analyzes, informs the police on its website and will not provide more information in the case at the moment. However, the police are looking for observations from the public and if you know anything you can contact phone number 114 14.