A 22-year-old man died after crashing into a water-filled ditch in New Leake.
The incident took place yesterday (Sunday) in Fodder Dyke Bank at about 8.35am and the driver, from Alford, was certified dead at the scene.
The man was the sole occupant of the black Peugeot 206 GTI and no other vehicle is said to have been involved in the incident.
The road was closed until just before 4.30pm.
Anyone with any information should call the force on 101 or the collision witness hotline on 01522 558855, quoting incident 115 of September 14.
This brings the number of people killed on the roads of Lincolnshire in 2014 to 25 compared to 24 at the same point in 2013.
Six people have now died on Lincolnshire’s roads in the space of less than a week.