The alarm about the traffic accident was received at 07.40 on Saturday.
No one should have been injured in connection with the accident that occurred between Västerledsmotet and Västjädra in Västerås, according to the police.
The accident has a major impact on the traffic between the two traffic areas in the direction of Köping where only one lane is open, VLT.
The emergency services are on the scene and are waiting for rescuers.
The police have drawn up a report about carelessness in traffic.
The text is updated