A driver was airlifted to Bismarck after crashing his vehicle on the west edge of Richardton on Tuesday morning.
According to the North Dakota Highway Patrol, a 39-year-old man was heading east on Old Highway 10 when he failed to negotiate a curve near the intersection with Highway 8.
It was around 3:45 Tuesday morning, and police say the roads were scattered with snow and ice at the time.
The driver entered the ditch, the vehicle flipped over and came to rest in a field, on its top.
He was transported to CHI in Dickinson, but later airlifted to Sanford in Bismarck.
The crash remains under investigation.