One man was killed and four others were injured after a collision on the M1 in Northamptonshire in the early hours of Monday (July 18).
Crash investigators believe a vehicle collided with a broken down Mercedes in lane one on a controversial smart motorway section at around 3.20am.
The victim is thought to be have been standing at the rear of the stranded car.
Firefighters in attendance at another field fire spread across 30 acres in Northamptonshire
VIDEO: 'Flagship' mountain bike park in Northampton hailed as 'game-changing' - rough opening date revealed
Mother of Northampton university student criticises national estate agent and landlord over £300 deposit dispute
WATCH: Fire takes hold of field in Northampton as temperatures increase
Northampton dad criticises Travelodge over 'mouse infestation' during hotel stay before family trip to Disneyland Paris
Police, who are appealing for witnesses, confirmed the incident happened on a stretch where the hard shoulder has been replaced by a fourth ‘live’ lane with safety refuges at regular intervals.
The motorway was closed both ways for around four hours while the southbound carriageway eventually reopened just before 9am.
A Northamptonshire Police spokesman confirmed: “A silver Toyota Previa collided with the rear of a stationary grey Mercedes car, which is believed to have broken down in lane one between Junction 17 and the Watford Gap services.
“It is believed the driver of the Mercedes, a man in his 40s from Bedfordshire, was standing at the rear of the vehicle.
“He was sadly pronounced dead at the scene while his four passengers were all treated for minor injuries, along with the driver of the Toyota.
“Officers would like to hear from anyone who may have witnessed the incident or who may have dashcam footage of the actual collision or the vehicle prior to the incident.”
Anyone with information is asked to email [email protected] or alternatively call the Drivewatch Hotline on 0800 174615 or Northamptonshire Police on 101 using incident number 22000412936.