Two men died following an Ironman 70.3 triathlon in Madison, Wisconsin, the Madison Fire Department said. Todd Mahoney, 38, an apparatus engineer with the fire department, and Michael McCulloch, 61, of Cottage Grove, Wisconsin, both died during the swimming portion of the race.

Mike McCulloch, left, and Todd Mahoney, right; both men died while competing in an Ironman triathlon in Madison, Wisconsin on Sunday, May 9.