A Kentucky man was seriously injured after he fell off the front of a moving pontoon boat on Center Hill Lake Monday.

The 21-year-old man was struck by the propeller of the boat after he fell off the rental pontoon boat that was carrying 14 vacationing passengers. He was not wearing a life jacket.

TWRA officers responded to the incident just after 3:00 pm.

The man was flown to Vanderbilt University Medical Center for treatment.

The incident is still being investigated.