Lexington Police said a man suffered life-threatening injuries Tuesday night after his motorcycle hit a tree along Delong Road.
Investigators said the accident happened around 9:15 p.m.
The victim's name hasn't been released.
He was rushed to UK Hospital.
Investigators said the man was wearing a helmet.
The Lexington Police Department's Collision Reconstruction Unit (CRU) was on the scene trying to determine what led to the crash.
Delong Road was closed between Armstrong Mill and Walnut Hill.