WILLIAMSON COUNTY — A 38-year-old Carterville resident was involved in a one-vehicle crash on Hafer Road in Williamson County around 7:30 Thursday morning.

The Williamson County Sheriff’s Office says the vehicle left the roadway, overturned several times and came to rest on its roof in a private pond. The driver was submerged.

The driver was freed from the vehicle after four motorists stopped.  All four motorists entered the pond and were able to remove the driver from under the water. The driver was taken to a local hospital and then flown to an out of state hospital with critical injuries.

The driver was the only person in the vehicle.

Hafer Road was closed for two hours after the accident, but reopened around 10.

The sheriff’s office is investigating the crash.