Mystery over Brett Gardner's son cause of death in Costa Rica deepens: report

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Officials reportedly ruled out asphyxiation and suggested food poisoning could be the cause of the death of Brett Gardner's 14-year-old son.

Miller Gardner and his family were reportedly vacationing in Costa Rica when he fell ill and died last week. The former Yankees outfielder and his wife announced Miller's death on Sunday.

Asphyxiation was originally listed as the cause of death, according to NBC News. But the New York Post reported, citing Costa Rica's Investigation Police, it's now been ruled out. 

Officials told the outlet his airwaves were not obstructed.

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New York center fielder Brett Gardner hits a game-tying three run home against the Toronto Blue Jays at Yankee Stadium. (Wendell Cruz-USA Today Sports)

Miller had vomited in his bed, leading investigators to initially believe that he had choked to death.

The family was reportedly staying at the Arenas Del Mar Beachfront & Rainforest Resort outside Manuel Antonio National Park.

Costa Rican officials have not responded to an email made by Fox News Digital.

A Costa Rica Judicial Investigative Agency official told NBC that Gardner had "a possible intoxication after apparently ingesting some food." The State Department said in a statement to Fox News Digital that local officials were investigating a death that occurred on March 21 in Costa Rica – the same day Miller Gardner passed away.

Brett and Jessica Gardner said other family members fell ill on the vacation.

New York Yankees left fielder Brett Gardner runs the bases after hitting a home run against the Chicago White Sox at Field of Dreams in Dyersville, Iowa, on Aug. 12,