Princess Cruises has been forced to cancel a cruise of its three month old Royal Princess after it lost power in the Mediterranean,” Travel Weekly reports.

The 142,721 gross ton ship suffered from a power outage on Sunday while sailing between Mykonos and Naples. It was carrying 3,594 passengers and 1,336 crew and was on the seventh day of a 12-day voyage from Venice. There was no danger to those on board and emergency generators provided power for essential services, the report pointed out.

Power was reported to have been out for around three and a half hours. A statement from the US line confirmed that the cruise will be cancelled after the ship arrives in Naples tomorrow evening (Tuesday). It is not yet known what impact there will be on the next cruise, due to depart from Barcelona on September 27. Passengers in the current voyage will receive a full refund along with a 25% future cruise credit.

The line said: "The ship’s technical team continued to evaluate the problem overnight and, upon further assessment, it became apparent that repairs need to be made to fully resolve the situation. "We sincerely regret this means the remainder of the current cruise will be cancelled, and passengers will disembark the ship in Naples. Princess is making homeward air arrangements for passengers, and we anticipate that passengers will spend Tuesday night onboard and depart the ship on Wednesday," the report said.

HRH The Duchess of Cambridge named the ship at Southampton in June.