(Louisville, KY) -- Louisville Metro Police Homicide Detectives are investigating the death of a man found on a freeway ramp Thursday night. The person's body was in the back seat of a Chevy SUV at the end of the ramp from southbound I-65 to Grade Lane. A tow truck driver called police about the Chevy on the left side of the ramp and officers discovered him inside. The man's age and race are undetermined. There were no obvious signs of trauma on the man's body. Police found a hole on the Chevy, but what caused it isn't known. Investigators are awaiting the results of an autopsy to determine if the man's death was due to foul play.