A lane is closed on the A45 near Northampton follwing an accident.
Three vehicles were involved in the collision, which was reported at 8.45am on Nene Valley Way westbound, near the Riverside slip road.
Lane one (of two) is closed due to debris on the road, and slow-moving vehicles are tailing back as far as Earls Barton,
The AA Travel website says delays are 30 minutes