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The vehicle was one in a caravan chartered by Carnival, and broke down after leaving Mobile, Alabama, CBS reported.
The cruise ship finally arrived in Mobile late Wednesday night, after an engine fire led to a loss of power. Stranded in the Gulf of Mexico, the ship was slowly tugged to shore, while more than 4,000 passengers spent five days without the use of showers or working toilets.
Carnival has booked hotel rooms in New Orleans for many of the Triumph's beleaguered passengers.