The world's largest cruise lines have no immediate plans to change their Middle East itineraries following a rash of tanker attacks in recent weeks, including today's onslaught.

Major operators held firm to their itineraries after two tankers operated by Frontline and Bernhard Schulte were the subject of a "torpedo attack" off Fujairah in the United Arab Emirates.

A month earlier, four tankers were assailed in a "sabotage attack" off Fujairah.