A passenger car has overturned for unknown reasons and landed in a ditch along the E4 motorway south of Norrköping. The incident resulted in three people being transported to the hospital for medical care. According to police reports, one of the affected individuals is seriously injured after being thrown from the vehicle at the time of the accident. The police have immediately launched a preliminary investigation covering suspected reckless driving and causing bodily harm to investigate the sequence of events. Furthermore, the police are investigating whether the individuals involved were wearing seatbelts when the accident occurred. The purpose of the investigation is to establish the exact circumstances regarding why the car overturned and landed in the ditch. The police emphasize the importance of investigating all factors to understand the underlying cause of this serious traffic accident.