Another American tourist dies while staying at Dominican Republic resort
The FBI, which is investigating the three deaths, said further toxicology results on the Americans could take up to 30 days.
Since news of the deaths was reported, families have shared similar stories of their relatives mysteriously dying while staying at resorts in the Dominican Republic.
At least two died after taking a drink from minibars, families said.
At least half a dozen people have reported abruptly falling ill while staying at resorts in the Dominican Republic. All of them said they stayed at Bahia Principe properties