According to officials, about 900 athletes were competing. There were about 18 lifeguards stationed in kayaks in the water and along the waterfront. We're told the man was showing signs of distress in the water. Lifeguards pulled him from the water.
The victim was taken by ambulance to Memorial Hermann The Woodlands Hospital. He was pronounced dead at about 9:30am.
Officials are not releasing the name or age of the victim, only that it was a man.
The event was sanctioned by the US Triathlon Association. This is the fifth year this event has been held.