The girl was taken to hospital with serious injuries, but according to the region, the situation must be stable.
The police have written a report of causing bodily harm, but are otherwise reticent.
- What I can say is that it was a tragic event, says Per Bjurström RLC officer in police region Mitt.
Witnesses to the incident were shocked so it took time to get information about the incident. No one has been detained, the tractor has been seized and the police are continuing to investigate what happened.