A multi-vehicle smash on the A19 northbound is causing delay for motorists.
The collision between three vehicles happened at 8.20am, today, on the Northbound carriageway near the A181 at Castle Eden.
Congestion is backed up to the A179 junction.
There are believed to be no-one seriously injured at this time and the road has been closed while vehicle recovery takes place.
Motorists are advised to use an alternative route.