An accident between a van and a car caused long delays on the M1 in Northamptonshire this afternoon.
Emergency services closed one lane on the southbound carriageway of the M1 between junction 18 at Crick and junction 17 just before Watford Gap following an accident.
The collision involved a van and a car.
Drivers were trapped in long delays with queues stretching back to junction 19.
All lanes have since reopened.