The alarm came in after 08 o'clock on Sunday.
Rescue services are on site at the time of the accident, which occurred on road 684 between Stavreviken and traffic junction Torsboda near Timrå.
One person was traveling in the car.
The injury situation for the victim is unclear.
The road is completely closed in both directions during the rescue operation.
Rescuers are expected and the end time, which is estimated at 10 o'clock, is preliminary.