Emergency crews were called to a crash on the M55 in Lancashire this evening.
A collision occurred between a car and a lorry on the eastbound carriageway between junction 3 at Kirkham and the Broughton interchange.
Tailbacks developed as fire, police and ambulance crews went to the scene.
One lane was closed as emergency services dealt with the incident, which was causing severe congestion.
One person was believed to be trapped in the wreckage.
No further details have been released.