A four-year-old girl was airlifted to hospital with serious injuries after a Volvo she was travelling in was involved in a collision with a lorry on the M1 in Northamptonshire.
The M1 northbound between junction 15 and 15a was closed on Friday following the crash that happened shortly before 5pm.
A police spokesman said there was heavy traffic at the time and, for reasons yet unknown, a white Mann lorry, driven by a 22-year-old man from Lithuania, was in collision with a blue Volvo XC90, driven by a 37-year-old man from Peterborough.
Several other vehicles were also hit as a result of the collision.
A four-year-old girl, who was a passenger in the Volvo, was taken by air ambulance to John Radcliffe Hospital, Oxford, with serious injuries.
Witnesses to this incident, or anyone who has any information, is asked to contact Northamptonshire Police on 101 or call the Drivewatch Hotline on 0800 174615.