The U.S. Coast Guard is searching for a Royal Caribbean crew member who reportedly went overboard on Christmas Day about 270 miles off the coast of Puerto Rico.

The Coast Guard crew, who are working without pay during the partial government shutdown, are looking for 20-year-old Arron Hough of the United Kingdom, who went overboard from the Harmony of the Seas cruise ship on Tuesday, according to a press release.

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The Coast Guard used a HC-130 Hercules airplane and the Cutter Resolute from Clearwater, Florida, to search for Hough off Aguadilla, Puerto Rico.

The Harmony of the Seas left Port Everglades in Fort Lauderdale earlier this week.