According to media reports, the FBI says the woman was not the victim of foul play or an accident.
The woman was last seen leaving her cabin at about 6:45 a.m. and her husband reported her missing at about 11 a.m. At that point, says a Carnival statement, "A comprehensive full-ship search was conducted and all proper authorities [were] notified. The ship turned around and backtracked to the area, slightly south of Cozumel, where the vessel was located when the guest was last seen. Upon reaching that location, the Elation joined search and rescue operations already in progress by Mexican authorities. At nightfall, the Elation was granted permission to proceed to Galveston. Mexican authorities were scheduled to continue search and rescue activities."
At this point, she has not been found.
Elation sails seven-night Western Caribbean trips from Galveston.