Police and ambulance crews have rushed to the scene of an incident on the A46 north of Lincoln.
Local residents have reported that a crash occurred at the Dunholme junction at around 4.30pm on Tuesday, July 4.
Heavy traffic is being reported in the area at the time of writing in both directions.
An ambulance is also on the scene.
Lincolnshire Police have been contacted for more information. No one has been available at the time of writing.