The bodies of Tennessee agents Michael Phillips, 68, and wife Robbie Phillips, 65, who specialised in selling Sandals, and 64-year-old Vincent Chiarella from Florida, were found at the property on Exuma on 6 May.

Initial investigations centred on the resort’s air conditioning as a cause, but this has now been ruled out.

Sandals said: “Despite initial speculation, Bahamian authorities have concluded the cause was an isolated incident in one standalone structure that housed two individual guest rooms and was in no way linked to the resort’s air conditioning system, food and beverage service, landscaping services or foul play.” 

A Sandals spokesperson told TTG they could not comment on how carbon monoxide had leaked into the two rooms.

In a statement, Sandals added: “Ensuring the safety and wellbeing of our guests and team members is, and will always be, paramount. It is for this reason that we have taken additional measures such as engaging environmental safety experts for a comprehensive review of all systems across the resort.

“In addition, carbon monoxide detectors have now been placed in all guest rooms at Sandals Emerald Bay and although not mandated in any Caribbean destination where we operate, detectors will be installed in all guest rooms throughout the portfolio.

“We remain devastated by the unimaginable event that occurred at Sandals Emerald Bay Resort earlier this month that resulted in the loss of three lives, including two members of our beloved travel advisor community, and the recovery of a fourth guest.

"We wish to once again extend our deepest sympathies and our heartfelt condolences to the Phillips and Chiarella families.”