Police are appealing for witnesses following a serious collision on the M1 northbound in Northamptonshire in the early hours of Sunday, September 17.
The collision involving two cars happened at about 1.45am near the end of the entry slip road at junction 15.
The vehicles were travelling north when a Mercedes C250AMG was in collision with the rear of a silver Mercedes E220. The Mercedes C250AMG left the carriageway and was in collision with a number of trees before catching fire.
A passenger in the C250AMG was taken to hospital with serious injuries. The drivers of both vehicles sustained minor injuries.
The motorway was closed for several hours while emergency services dealt with the incident and collision investigators carried out initial investigations.
Officers would like to hear from anyone who may have witnessed the incident or who may have dash cam footage of the collision.
Anyone with information about the collision is asked to email CollisionAppeals@northants.police.uk or call the Drivewatch Hotline on 0800 174615, or Northamptonshire Police on 101.
Please quote incident number 23000578143 when providing any information to make sure it gets to the right person as quickly as possible.