Update: Police said shortly after 11.30am this is now clear and the road is now open. There is still heavy traffic in the area due to the diversions in place.
Three people have been injured after a two-car crash on the A15 north of Lincoln this morning.
The incident happened near the junction for Ingham around 9.30am, and police say the road is likely to be shut for some time.
The people injured are not thought to have life threatening injuries.
All emergency services are at the scene.
Anyone who saw the crash should call police on 101 and quote incident 100 of September 9.