A Lancashire motorway was blocked on Saturday after a crash.
Emergency services were called to the westbound carriageway of the M55 between J1 and J3, to a crash involving two cars.
Two people were taken to hospital with injuries that were not thought to be life threatening.
The Highways Agency was warning motorists to be aware of the accident, at about 3pm, and said delays were building.
There was also a vehicle on fire between J3 and J4, which broke out about 2.30pm.