According to the first information, there are many injured.
Police in the Norwegian capital have arrested the perpetrator. The motives of the man are currently unknown.
On the other hand, the authorities note that the vehicle dragged several people, but his health condition is still unknown.
Police opened fire on the ambulance so that it could stop the perpetrator, who was injured.
"We have an ambulance under our control which was stolen by an armed man. "We opened fire to stop the perpetrator, who was not seriously injured," police said in a Twitter post.