Briton missing from Mexico cruise ship
A spokeswoman for the Foreign Office said: "We are aware of the reports and are looking into them."
The guest saw the man fall overboard at 12.10pm (7.10am local time) on Friday, a statement from Royal Caribbean said.
The company added: "The ship made multiple public announcements and they began a complete search of the ship, in efforts to locate the guest.
"When the guest did not respond to the pages and was not found on-board, the captain alerted the local authorities of the situation.
"A review of the ship's closed-circuit camera footage observed the 30-year-old British male guest going over the balcony railing in his stateroom on deck 11.
"The location of the ship at the time the guest went overboard was marked on the ship's Global Positioning System (GPS) and the US and Mexican coastguard were alerted.
"Allure of the Seas, along with Mexican coastguard, Mexican navy and the pilot boat, conducted a search for the missing guest."
The coastguard released the ship at around 2.30pm (9.30am local time) and it continued on to Cozumel, where it arrived an hour later.
"Our care team is providing support to the guest's family and our thoughts and prayers are with them," the statement said.
"Allure of the Seas is currently sailing a seven-night Caribbean itinerary that departed Fort Lauderdale, Florida, on January 29, with port calls to Labadee, Haiti; Costa Maya and Cozumel, Mexico."
A spokeswoman for Royal Caribbean International said the ship had been fully chartered by Atlantis Events, whose website says it is "the largest company in the world dedicated to creating unique vacations for the gay and lesbian community".
The Allure of the Seas boasts a park with more than 12,000 live plants, a zip line, a theatre, a casino and a nightclub.
Atlantis Water Park Carribean - News
who apparently went overboard from the world's biggest cruise ship in waters near Mexico. The 30-year-old man was seen falling over the railings by another passenger on the Allure of the Seas, the Royal Caribbean International cruise line said.
George Markantonis, who is also president of Kerzner International Bahamas, added that the legal battle between Brookfield and other Kerzner lenders shows just how valuable an asset Atlantis is. He again downplayed any possible layoffs or major changes
Likewise, as a nation, we must place 2011 and 2012 in the fuller context of world events. The Bahamas is a part of “the main” in terms of our regional and international relations. We are linked to the continents of the world by history and culture,
By NATARIO McKENZIE KERZNER International (Bahamas) chief yesterday suggested the fight between the company's lenders over its $2.5 billion debt is likely to be resolved "in the short-term", with the original $175 million debt-for-equity swap proposed
The massive and elaborate Atlantis Paradise Island Resort & Casino in the Bahamas is themed as the Lost Continent of Atlantis and you could get lost in its extensive water playgrounds - 11 pools plus two giant waterslides. Kids have more than a dozen