A lorry driver whose vehicle crashed on the M1 near Northampton died at the scene, police have said.
Thames Valley Police is appealing for witnesses after the fatal road traffic collision between junctions 14 and 15 yesterday morning.
Although reports yesterday were that up to four vehicles were involved, police said only a DAF lorry, was involved.
Officers said it left the road and collided with a number of trees, killing the driver, a 46-year-old man from Accrington, Lancashire.
The passenger, a 51-year-old man, sustained serious injuries and was airlifted to a hospital in Coventry where he remains this morning (Wednesday).
Investigating officer, Sgt Tony Griffiths of the roads policing unit based at Amersham, said: “I would appeal to anyone who saw the collision itself, or saw the vehicle prior to the collision to contact police via 101.
“It is vital that members of the public come forward so we can piece together what happened on this stretch of the M1 yesterday morning.
“If you don’t want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.”