CASS COUNTY, Ind. -- Deputies responded to reports of a single-vehicle injury crash Sunday around 9:17 a.m. on M-60 near Stone Lake Drive, according to the Cass County Sheriff's Department.

Investigations show that the driver, a 50-year-old man from South Bend, was headed east around 1 a.m. at the time of the crash.

Officials say that the driver lost control of the vehicle, went off the roadway, and was unable to exit the vehicle due to his injuries.

The vehicle was not visible from the roadway and was covered in snow.

A passerby reportedly saw movement in the area of the crash and located the vehicle.

From there, the Cassopolis Fire Department and EMS were able to remove the driver from his vehicle and transport him to the Cassopolis Fire Department.

Med Flight responded and airlifted him to South Bend Memorial Hospital. His condition is unknown at this time.

Weather and road conditions are believed to have been contributing factors in the incident.

Police also believe that the driver was wearing a seatbelt and say that drug and alcohol were not believed to be a factor.