The incident took place in Mount Sinai around 7:50 p.m., Thursday, July 21.
Kihee Kim, age 94, was found when officers responded to a home on Kingston Road for an unresponsive person in a pool, said Suffolk County Police.
Kim, who was staying at the home with a relative, was transported to John T. Mather Memorial Hospital in Port Jefferson via ambulance where she was pronounced dead.
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