Lake Barkley Marina General Manager Tammi Head witnessed the event.
Around 1 p.m. on Sunday, Head said there was a boat containing up to 10 people on board that started taking on water as they were headed back to the courtesy dock.
Waves from another watercraft added more water to the sinking boat, forcing two passengers into the water.
Head said within seconds, the boat was underwater. One of the passengers in the water was a special needs individual who uses a wheelchair.
Marina employee Micah Brown was gassing up another boat when he saw the boat and individuals go into the water.