PA Woman Among 3 Mysterious Deaths At Same Caribbean Resort

A Pennsylvania woman is among three mysterious deaths reported within days at the same Dominican Republic resort.

Miranda Schaup-Werner, 41, of Allentown was found dead at the Grand Bahia Príncipe Hotel on May 25. She was visiting the Dominican Republic resort to celebrate her anniversary with her husband but died suddenly while having a drink, her family told CBS News.

Five days later, two Maryland residents were found deceased in their hotel room at the same resort, federal sources have confirmed. The couple has been identified as Edward Nathaniel Holmes, 63, and Cynthia Ann Day, 49, of Maryland.

All three died of respiratory failure and pulmonary edema, the Dominican Republic National Police told ABC News.

Pulmonary edema is an abnormal buildup of fluid in the lungs, according to the National Institutes of Health. It is often caused by heart failure, but can also be a result of certain medicines, injury, or even lung damage from poisonous gas, information from the NIH said.

In a statement to ABC News, the U.S. Department of State said they are "actively monitoring" the investigations into the three deaths but are "not aware of any connection" between the incidents.

Jay McDonald, a family spokesman for Schaup-Werner, told ABC News Schaup-Werner began experiencing physical distress after having a drink from the mini-bar in her room on the day of her arrival. She did not have prior health issues, McDonald said.

The hotel did not immediately return a request for comment, and no statement has been issued on its website.

The resort is advertised as a "sweet and cozy" getaway with access to world-class golf courses.