NEW YORK (CBSNewYork) – Multiple American tourists have died in the Dominican Republic this year and last year.

Some of the deaths reportedly occurred after the visitors complained of feeling ill after eating a meal or drinking out of the hotel minibar.

The U.S. embassy in Santo Domingo said there is no proof at this point the deaths are linked. Several of the deaths were reported to be a heart attack, which health officials say is the most common cause of death for Americans on vacation.