Police have identified the names of the Tennessee and Florida guests who were found dead at the Sandals Resort in the Bahamas.

Acting Prime Minister of the Bahamas, Chester Cooper, said no mishap was suspected in Friday’s death.

Royal Bahamas Police Commissioner Paul Roll said Monday that forensic scientists have collected samples from the deceased, and a laboratory in Philadelphia is helping with toxicology checks. He said the scientists also collected samples from the rooms where the bodies were found to check for contaminants.

Officials declined to say whether any contaminants had been found in the samples so far. Rolle said the pathologists will provide a formal report once the tests are complete.

Police pronounced Michael Phillips, 68, and his wife Robbie Phillips, 65, of Tennessee, dead at the resort Friday, as well as Vincent Paul Chiarella, 64, of Florida, who was found unresponsive in a separate room.

A fourth American – Chiarella’s wife, Denis Chiarella, 65 – was airlifted to a hospital in the capital of the Bahamas before being transferred to Kendall Hospital in Miami, where her condition was previously upgraded From Monday to Adel from Jadsaid Jennifer Guerrieri, a spokeswoman for the Hospital Corporation of America, East Florida Division.

Sandals spokeswoman Stacey Royal and the US State Department confirmed the three deaths at the Sandals Emerald Bay resort in Great Exuma.

“We are closely monitoring local authorities’ investigations into the cause of death. We stand ready to provide all appropriate consular assistance,” the State Department said in a press release. “Out of respect for the families’ privacy, we don’t have anything to add at the moment.”

Guests found unresponsive in resort villas

Resort staff told police shortly after 9 a.m. Friday that an unresponsive man had been found in a villa, police said. The statement said the police, on their way to the scene, were informed that another unresponsive man and woman had been found in another villa.

In the first villa, the police found a “Caucasian man lying on the ground unresponsive” and showing no signs of shock. Police said a doctor has pronounced him dead. On Saturday, Rolle said the woman who was taken to hospital had been found with him.

In the second villa, the statement said, they found a second man who “fallen against a wall in an unresponsive bathroom” and “the woman was found in a bedroom on a bed.”

Officials say the killing of 3 Americans at the Sandals resort in the Bahamas is under investigation

“Both of them showed signs of convulsion,” the statement said. They showed no signs of shock. The doctor also declared them dead.

Police said the man and woman in the second villa had complained of illness the night before and had received treatment at a medical facility before returning to their room.

Cooper on Friday asked the country’s Minister of Health and Wellness to lead a delegation of health, environment and public works officials to the Exuma region.

“Nothing is more important to Sandals Resort than the safety of our guests,” the resort said in a statement, adding that it is working actively “to support the investigation as well as the families of the guests in every possible way.”

She added that the sandals could not disclose more information “out of respect for the privacy of our guests.”

Carlos Suarez, Hera Humayun, Jason Hanna, Rebecca Reiss, Sarah Jorgensen, Susanna Cullinan, and Elliot C. contributed to this report.