Police investigating the death of Carlow woman Martha Nolan-O'Slatarra on board a boat in Long Island, New York, have said a post-mortem examination did not show evidence of violence.
The Suffolk County Police Department said the final cause of death is pending further examination.
At the Montauk Yacht Club marina where Ms Nolan-O'Slatarra was pronounced dead in the early hours of Tuesday morning, locals said the community had been left shocked by the incident.
A contractor working on the marina, who declined to be named, said that people felt scared when they first heard the news. He said Montauk was a small town where incidents like this "never happen".
Watch: Yvonne Murray reports on death of Irish woman in New York
An employee, who also preferred not to be named, told RTÉ News the hotel attached to Montauk Yacht Club had received dozens of cancellations following reports of the incident.
The motorboat, named Ripple, where Ms Nolan-O'Slatarra was found dead, was still moored at the marina last night. There was no police presence nor cordon.
Eyewitnesses on a nearby boat told RTÉ News they were woken by shouting from a man, believed to be Ms Nolan-O'Slatarra ’s companion, in the middle of the night.
They said they saw him running down the marina calling for help and trying desperately to raise the alarm.
Police previously reported that bystanders had tried to resuscitate Ms Nolan-O’Slattara using CPR but that was too late.
The 33-year-old Carlow woman moved to the US aged 24 where she ran a successful fashion brand, called East X East, selling high-end beach wear.
She was also director of operations at investment firm K4 Capital and ran an Amazon fashion brand, Duper.
According to a TikTok post, she had recently celebrated the launch of a pop-up shop at Gurney's, an exclusive Hampton’s oceanfront resort.
Writing on social media, her friend and co-founder Dylan Grace said they had dreamed big together and "built so much from nothing".
He said he was blessed and grateful to have had her in his life. "Love you so much. Fly high girl," he wrote.
The Department of Foreign Affairs and Trade is aware of the case and is providing consular assistance.
As with all consular cases, the Department does not comment on the details of individual cases.
Fianna Fáil County Councillor in Carlow Andrea Dalton said she is "deeply saddened" to hear about Ms Nolan-O'Slatarra's "untimely" death.
In a statement to RTÉ News, she said that while she did not know her personally, her thoughts and prayers are with her family.
"I know the community of Carlow will rally around Martha's family at this difficult time."
Taoiseach Micheál Martin said the death of Ms Nolan-O'Slatarra is an "absolutely devastating blow to the family" and her community in Co Carlow.
Mr Martin said she was "a young, beautiful, very talented, creative woman" and his thoughts and prayers are with her family.
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