Union County, TN (WOKI) The Tennessee Wildlife Resources Agency is investigating a fatal boating incident on Norris Lake in Union County, the 15th fatal boating incident in Tennessee this year.

TWRA received the call Wednesday night that someone was receiving CPR aboard a vessel on the lake near Hickory Point Subdivision.

The preliminary information shows that 53 year-old Kevin Allen of Ohio had been wakeboarding and fell into the water.

When he got back on, he began experiencing a medical emergency and soon lost consciousness.

Despite rescue efforts, Allen was pronounced dead at the scene. A witness says he had a medical condition that may have contributed to the incident.

The official cause of death will be determined by the medical examiner. At this time, it is unclear whether the incident was solely medical in nature or triggered by recreational boating activity.