U.S. authorities are investigating alongside officials in Aruba after a woman plummeted to her death from cruise ship this week.

The U.K. Daily Mail cited a local news outlet‘s report that officials with Princess Cruises were not considering the woman’s husband a suspect after he was seen being escorted off the ship by authorities.

As CrimeOnline previously reported, a witness aboard the Royal Princess reported seeing a man choke the 52-year-old woman on the ship’s upper deck before she fell, hitting a lifeboat attached to the side.

The incident happened on Tuesday as the ship was traveling from Curacao to Aruba.

According to WPLG, the FBI is working with police in Aruba and have concluded that the woman appears to have died of “unnatural causes.”

The ship arrived back in Fort Lauderdale, Florida, on Saturday.

Stu Klotzle recalled the aftermath of the disturbance as a public announcement to the thousands aboard advised them of the passenger’s death.

“It was 20 minutes past 3 and we looked over the balcony and we could see the security response team going along the deck towards where the lifeboat was,” he said.

The Daily Mail cited another source on the ship who described “two passengers” who “had a row in the casino” just before the fatal encounter.

Princess Cruises issued a statement acknowledging the incident, adding that it was “deeply saddened” and offered “sincere condolences to the family and those affected.”

As the statement explained, a cause of death was “not known at this time.”

Authorities were still awaiting the results of an autopsy as of the latest update available.

[Featured image: video screenshot]