Motorists face hours of delays after a lorry carrying chocolate was engulfed by flames on the A2 at Bluewater, Kent.
Three of the four London-bound lanes have been closed after the lorry and its cargo was destroyed earlier.
The vehicle is still smoking and emergency services remain at the scene.
A crash between the junctions for Gravesend west and Gravesend central is also adding to the congestion. Normal traffic conditions are not expected until around 10:45 BST.
It is understood at least one person was injured in the crash, but nobody was injured in the fire.
Fire fighters are in the process of removing what’s left of the cargo, believed to be a consignment of chocolate bars, so that the vehicle can be moved.