The A1(M) is closed in both directions between junction 51 for Leeming Bar and junction 52 for Catterick. North Yorkshire Police, North Yorkshire Fire and Rescue Service and Yorkshire Ambulance Service are all attending the incident, alongside National Highways.

A statement from the agency, which looks after major roads across Yorkshire and beyond, said: “The collision occurred shortly after 7am this morning. One of the vehicles has crossed over the carriageway, overturned and come to rest on its side. There is a significant amount of debris across both carriageways.

“North Yorkshire Police, Fire, Ambulance Services and National Highways Traffic Officers are on scene. The closure is expected to be protracted and in place for a considerable time today.”