Costa Rica authorities confirmed that carbon monoxide poisoning was the cause of death of Miller Gardner, the 14-year-old son of former New York Yankees outfielder Brett Gardner.

A spokesperson for the hotel denied initial reports by police that there were high levels of carbon monoxide in Miller's room before he died in his bed.

On Friday, Mary Munive Angermuller, Costa Rica’s Health Minister, announced that they will be investigating exactly what happened at the luxurious Arenas Del Mar Beachfront & Rainforest Resort, where the family was staying, that led to lethal levels of carbon monoxide in the air.