Authorities on Wednesday called off their search for a passenger who vanished earlier this week during a cruise to Puerto Rico, saying there's nothing more that can be done at this point, according to FOX affiliate WSVN.

Click here to read the WSVN report.

Relatives last saw the 24-year-old American man around 1:45 a.m. Monday on his stateroom balcony, and reported him missing about seven hours later, according to the Royal Caribbean cruise line. The man's name was not released.

Royal Caribbean's Freedom of the Seas ship then returned to the waters east of Eleuthera Island, Bahamas, where it had been sailing when the man was last reported seen.

But on Tuesday, the Royal Caribbean International ship resumed its voyage to Puerto Rico as U.S. Coast Guard crews searched for the passenger.

The FBI and the Bahamian Maritime Authority were also aware of the missing passenger, according to a statement from the Miami-based cruise line.

The ship, carrying 4,141 passengers, was expected to dock in San Juan, Puerto Rico, on Wednesday afternoon, a day later than scheduled. It will return to Miami on Sunday morning.

The line is operated by Royal Caribbean Cruises Ltd.