A 58-year-old Texas man died in while scuba diving off the coast of Key Largo.
Monroe County Sheriff's spokeswoman Becky Herrin says Oswald Regueira was on his first dive of the day Sunday when he surfaced in distress.
The boat's captain told authorities all the other divers from the commercial dive boat Tropical Legend were recalled to the vessel and Regueira was pulled on board.
Herrin says CPR was performed as the boat traveled to shore, where the man was taken to a hospital.
Regueira was pronounced dead at the hospital.
An investigation continues.