A severe single-vehicle accident occurred early Sunday at 4:39 AM on Highway 4 near Orimattila, Finland, resulting in one fatality. The vehicle left the roadway and ended up in the median, specifically in the area with an underpass. At the time of the incident, there were four people inside the car. Emergency services describe the crash as serious. Three other occupants sustained severe injuries and are receiving medical attention. The accident occurred on the Lahti motorway section of Highway 4.