The A16 Spalding Road is closed in both directions between Kirton roundabout and Sutterton Roundabout following a HGV jackknifed across the road.
At the time of publication, it was unclear if any other vehicles were involved, but reports suggest that the Air Ambulance had been in attendance near the location.
Lincolnshire Police and East Midlands Ambulance Service have been approached for a comment.

A photo from the scene shows a HGV jackknifed across the carriageway.