DRY TORTUGAS NATIONAL PARK (CBSMiami/AP) — Two people died while snorkeling off the Florida Keys.

The Monroe County Sheriff’s Office said Saturday, May 18th that a Texas man died a day earlier off the Dry Tortugas. He had been pulled from the water by two men who performed CPR on him.

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An autopsy will be done to determine his cause of death.

The sheriff’s office said separately, on Thursday, May 15th a Pennsylvania woman was snorkeling off of Marathon when she began coughing up blood.

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The Coast Guard transported her to shore, but she was pronounced dead at a hospital.

She was on numerous medications and had a pacemaker, but an autopsy was set to be done to determine her cause of death.

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