(FOXNEWS) — A graduation trip to the Dominican Republic for a group of Oklahoma teens took a turn earlier this month when part of the group became mysteriously ill during their stay in the Caribbean nation, where at least nine Americans have died while vacationing.

About 40 seniors, who just graduated from Deer Creek High School in Edmond, traveled to the Dominican Republic on June 8 to stay at the Hard Rock Hotel and Casino in Punta Cana, a parent told KOTV.

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