A US cruise ship has been quarantined in the Caribbean after a measles case was detected on board.
Authorities in St Lucia made the decision amid concerns over the ongoing measles outbreaks in the US.
NBC News reports the individual has been isolated and is in a stable condition.
Health officials said they quarantined the ship as one infected person can easily infect others.
In a video statement, National Chief Medical Officer Dr Merlene Fredericks James explained: "Because of the risk of potential infection - not just from the confirmed measles case, but from other people who may be on board - we thought it prudent to not allow anyone to disembark."
While the ship was not officially named, a coast guard official in St Lucia told NBC News that the vessel involved is named 'Freewinds' - the name of a cruise ship owned and operated by the Church of Scientology.
According to the church, the cruise ship hosts a "religious retreat ministering the most advanced level of spiritual counseling".
NBC also reports that officials in St Lucia do not have the authority to prevent the cruise ship from leaving.
It's currently scheduled to leave at midnight tonight local time.
St Lucia is a small island nation with a population of around 160,000 people.
It attracts the majority of its tourists through cruises that stop in the country.