According to the police in Värmland, the initial information is that two cars first collided, forming a queue.
Then two cars, including a truck, drove into the queue from behind.
According to SOS Alarm, a total of eleven people were involved in the collision that occurred in a southerly direction from Spångamotet to Skattkärrsmotet.
One person is seriously injured according to Mats Öhman, the police's press spokesperson in Region Bergslagen.
Emergency services, ambulance and police are on site.