Kentucky State Police have released additional details on two fatal collisions that took place on Ky. 849 this week.

On Tuesday, Troopers with Post 1 responded to the 3000 block of Ky. 849 East, west of Ky. 994 around 2:30 p.m. for a single-vehicle collision. Austin Mullins, 16, of Smithland advised dispatch that a vehicle had run off the roadway. Troopers located a 2006 Jeep SUV, overturned, at the bottom of a steep embankment.

The initial investigation showed the 2006 Jeep SUV was traveling east and was operated by Julian Duke, 14, of Smithland. For an unknown reason, the vehicle traveled off the right side of the roadway, down a steep embankment and overturned onto its top. The vehicle struck several trees as it traveled down the embankment.

Mullins was injured but was able to exit the vehicle and was airlifted from the scene to TriStar Skyline Medical Center in Nashville, Tennessee. Duke had to be extracted from the vehicle by mechanical means and was pronounced deceased at the scene byGraves County Coroner Brad Jones.

Both Mullins and Duke were wearing their seat belts.

Trooper Sarah Burgess and Reconstructionist Sgt. James Phelps are investigating the collision.

Kentucky State Police were assisted on scene by the Graves County Sheriff's Office, Graves County Coroner, Mayfield-Graves County EMS, Mayfield Fire Department, and North Graves Fire Department.

On Wednesday, troopers responded to a single-vehicle injury collision near the 900 block of Ky. 849 West at round 2:50 p.m. That initial investigation showed a 2009 Chevrolet HHR was traveling east, operated by Elizabeth D. Shelby, 21, of Hickory.

After crossing the intersection of Meridian Road, the vehicle dropped off the right shoulder of the roadway. Shelby overcorrected and left the right shoulder of the roadway. The vehicle struck a tree on the driver's side and caught fire. Shelby was pronounced deceased at the scene by Jones.

Trooper Jay Dunn is investigating the collision.