According to the first alarm reports, a head-on collision had occurred, but it was not true.
It is a passenger car that has collided with a timber truck from behind, says Anders Vikström at the rescue service to TT at 18.30 on Monday.
One person has been taken to hospital after being taken out from the car from behind by the rescue service and ambulance. No one else is said to be injured.
The alarm about the accident, which occurred at Sätila, came at 17.20.
Corrected: In an earlier version of the text, incorrect information about how the accident occurred was presented.