It was shortly before 02:00 on the night of Sunday that a passenger car drove off the road on road 126 south of Svängsta for an unknown reason.
Seven young people were traveling in the car, six of whom were taken to hospital in an ambulance. The injuries should be minor and the seventh person should not have had to seek medical care at all.
The police are now investigating several crimes in connection with the accident. It is about negligence in traffic, drunk driving and causing bodily harm.