A search is underway for a 46-year-old man who fell from a cruise ship off the coast of Key Largo on Saturday morning, officials said.

The U.S. Coast Guard identified the missing man is David Mossman, 46, from Texas.

The Coast Guard received a report from the crew on board the Royal Caribbean Navigator of the Seas around 3 a.m. stating Mossman fell about 100 feet from the 10th deck of the ship into the water about 36 nautical miles south of Carysfort Reef Light.

The Coast Guard said it had searched 946 square nautical miles as of 5 p.m. and planned to search through the night.