Miller Gardner, the 14-year-old son of former New York Yankees player Brett Gardner, may have died as a result of carbon monoxide poisoning, authorities in Costa Rica announced on Monday.

The Costa Rica hotel where Brett Gardner's 14-year-old son Miller Gardner died alleged officials made "an error," saying the level of carbon monoxide found in the family's room was "non-lethal."

The death of former New York Yankees outfielder Brett Gardner's son is now being investigated as a possible carbon-monoxide poisoning, investigators said Monday. Gardner's 14-year-old son, Miller, died in March during a family trip to Costa Rica. The Gardner family announced his death in a statement released by the Yankees two days later.

Merely having a carbon monoxide detector is not enough if they aren’t tested regularly and replaced every few years, Charon warned

Costa Rican officials said Monday night that the 14-year-old son of former New York Yankees player Brett Gardner may have died from carbon monoxide poisoning.

Miller Gardner, 14, died in his sleep on March 21 after he fell ill during a vacation in Costa Rica, according to a statement by Brett Gardner and his wife, Jessica.

Costa Rican authorities told reporters that carbon monoxide poisoning may caused the mysterious death of former Yankees star Brett Gardner's son, Miller.

The Costa Rican resort where Miller’s body was found has denied the latest theory that the teen died from carbon monoxide poisoning.

After initially having disregarded it as a potential cause of death, Costa Rican officials said the teen son of former New York Yankees outfielder Brett Gardner may have died during family vacation as a result of carbon monoxide poisoning.