Paris, Sept. 13 – One person was killed and four were seriously injured in an accident near a French port involving a lifeboat on the world’s largest cruise liner, Royal Caribbean International, a Marseille Fire Department spokesperson told EFE today.

The five victims, who were crew members of the MS Harmony of the Seas, were presumably taking part in a security drill when the lifeboat they were on detached from the ship’s fifth deck, reported the local French newspaper “La Provence.”

The four injured crew suffered poly-trauma and were taken to several hospitals in the city of Marseille (southeastern France), where the ship was docked.

The Harmony of the Seas, belonging to the Miami-based Royal Caribbean cruise line, holds the world record for the largest cruise ship which weighs in at 226,963 GT.

The ship boasts a length of 362.12 meters (1,188 feet) and can accommodate over 6,000 passengers and 2,394 crew members.

The Harmony of the Seas cost $1.35 billion and is the third in the Oasis class, with her older sisters MS Oasis of the Seas and MS Allure of the Seas of slightly smaller dimensions.

The ship also features the world’s highest dry water slide, termed “Ultimate Abyss,” with a 100-feet drop that allows for speeds of up to 14 kms per hour (8.7 mph).

Royal Caribbean is one of the several cruise ship lines that dock each year in Costa Rica, either at the Pacific port of Caldera or the Atlantic port of Limón; Costa Rica receives about 200 cruise ships per year, according to the Costa Rican Tourism Institute. EFE