The 61-year-old American, who boarded the Golden Princess in New Caledonia on its way to Sydney, was last seen by the ship’s crew at about 9:30am on May 1, when the vessel was in the South Pacific, police said.
One of the boat’s crew members reported the man missing after he was not seen for several days, and the whole ship was searched when it docked in Sydney on Thursday.
The man was not found, and the Australian Maritime Safety Authority said it was treating his disappearance as a man overboard case.
NSW Water Police have contacted the US consulate and are reviewing CCTV footage as part of their investigation.
The ship has been cleared by authorities to continue to Brisbane and Papua New Guinea.
SOURCE: ABC NEWS