Two sisters were found dead while holidaying together. Now, an autopsy has revealed the cause.

Video via Fox 9

UPDATE: An autopsy report has revealed what caused the death of American sisters who were found in their luxury hotel room in Seychelles, off the coast of east Africa.

Annie Korkki, 37, her sister Robin Korkki, 42, died from excess fluid in their lungs, the New York Times has reported.

The report was conducted last Wednesday and released by the office of the Seychelles Minister of Travel and Culture.

It shows Annie and Robin Marie died from acute pulmonary edema (or having fluid in the lungs), with cerebral edema (or fluid in the brain) also cited in Annie’s death.

Mamamia previously reported: 

The sisters were found unresponsive in their hotel beds by staff at the Maia Luxury Resort and Spa on September 22 — just two days before they were scheduled to fly home.

The women, experienced travellers originally from Eden Prairie in Minnesota, had been drinking alcohol the day before according to staff, Seychelles Nation has reported.

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Detectives have yet to confirm what led to their death.

“What the police can say about the investigation so far is that the two sisters were consuming alcohol throughout the day,” police spokesperson Jean Toussaint said.

“And the last time they were seen drinking alcohol was at around quarter to seven and they were helped to their bedroom by hotel personnel at around 8.15 pm (22 September).”

Annie and Robin Korkki were said to be experienced travellers. (Image via Facebook)

The local newspaper reported a police examination of the bodies showed no signs of trauma and that medications were found in the room, but police had not revealed what types.

The Korkki family said they had not received enough information.

"At this point, the only details we know are the articles flying around online," their brother, Chris Korkki, told the Star Tribune.

"Two things keep going through my mind: This isn't happening, and we just want answers."

A memorial fund page has been set up by their family. (Image via Facebook)

He told FOX 9 their family was in shock.

"Everyone is trying to understand and come to terms with what happened," Chris said.

“We’re devastated and saddened and just looking for answers."

Maia Luxury Resort and Spa. (Image via Facebook/MaiaSeychelles)

He said his mother and brother were in the Seychelles to help police with their investigation and to bring his sisters bodies to Minnesota.

A memorial fund page on GiveForward has been set up to assist the family in bringing the women home.

Feature image via GiveForward.

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