LOUISVILLE, Ky. (WDRB) -- Indiana Conservation Officers are investigating an ATV accident that left a Louisville man in critical condition.

According to a news release, the accident happened Saturday just before midnight near Laconia in Harrison County, Indiana.

Officials say the man was riding a Yamaha ATV on a muddy trail when he lost control and hit a tree. Authorities say the man was ejected from the vehicle, hit a tree and was knocked unconscious.

According to authorities, another ATV rider provided aid and called for help. The man was airlifted to U of L Hospital and is currently in critical condition.

Investigators say the man was not wearing a helmet. 

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