Police have closed a section of the A1 along the Belford bypass after a lorry carrying gas canisters caught fire.
Police and fire crews were called to the scene at 1.53pm and are dealing with the incident.
A cordon has been put in place as a precaution.
A section of the A1 in both directions is closed and officers expect it to be for some time.
Motorists are asked to avoid the area and use the diversions that have been put in place.
Northbound traffic is being diverted at the Denwick turn off and southbound at Adderstone services.
HGVs travelling southbound are being diverted at Fenwick.
Motorists are thanked for their patience and co-operation.