Carnival Cruise Lines notified the FBI on Saturday after a deceased newborn was found on board one of their vessels, the Carnival Dream.
The FBI told Local 6 they are investigating the matter and the cruise line has been fully cooperative.
The FBI said the mother is a 20-year-old U.S. citizen and was a passenger on the ship.
Authorities said they are still trying to obtain facts and details about the incident, but no one has been charged at this time.
The mother is not from Florida, and has not returned to the U.S. yet, authorities said.
Stay with Local 6 for more on this story.