A 40-year-old man has died after a car flipped off the road and landed upside down in a ditch.
The crash happened just before 6am when his silver Vauxhall Corsa rolled off the A43, close to the Green Man Inn in Syresham.
The man, from Northampton, died at the scene.
Police shut the A43 southbound at the A5 roundabout for most of this morning, which caused traffic chaos between Towcester and Silverstone until it reponed just before 9.30am.
Anyone with information should call the Drivewatch Hotline on 0800174615 or send a text to 07765 637201.