LOS ANGELES: A pianist working on a cruise ship was rescued by two fishermen after drifting for nine hours in the Pacific Ocean about 30km off the coast of California, US media reported.

The circumstances under which the 37-year-old man fell overboard from the Ovation of the Seas, a Royal Caribbean ship bound for Mexico, are unknown, CBS News reported.

The man, whose identity was not released, was hospitalised and was not in a life-threatening condition, according to the US Coast Guard.

In the incident, which occurred on Friday, two fishermen — Grant Garrett and Sean Norton — were returning from marlin fishing near Santa Catalina Island, part of Los Angeles County, when they spotted the man in the open sea.