The A1 was closed in both directions yesterday (Thursday) after a crash between a car and an HGV near Belford.
It happened at 2.14pm when a car - an Isuzu - and an HGV were involved in a collision. Diversions were put in place.
The driver of the Isuzu was treated by paramedics at the scene and has been taken to the RVI in Newcastle for treatment.
Chief Inspector Sheila Foggo said: “I’d like to thank local residents and motorists for their patience.”