Police are continuing to clear part of the A45 near Northampton after a three-vehicle accident.
Witnesses said two cars and a lorry were involved in a crash at shortly before 4pm on the eastbound A45 between the Barnes Meadow roundabout and Riverside.
Although there are not believed to be any serious injuries and the fire service was not needed, the vehicles originally blocked all lanes.
Officers have now managed to open the middle lane ,but traffic is currently very slow-moving.
There have been reports of congestion to the East Hunsbury turn off.