At 13.50, an alarm was received about a dangerous discharge at the upper secondary school.
What it is about the subject is still unclear, but the police, rescue service and ambulance are on site.
- It could possibly be pepper spray.
There are people who have been affected in some way and felt a stinging sensation and itching in the throat.
There is an ambulance on site that examines the people who have symptoms, says police spokesman Filip Annas.
The text is updated.