Carnival Cruise Lines is to use the world’s largest semi-submersible heavy transport vessel to complete repairs to one of its ships in what is claimed to be a world first.

The 134,000-gt Carnival Vista (built 2016) has reported suffered “technical issues” with its azipod propulsion system off the Bahamas.

Carnival said the ship must be repaired in a dry dock, however a facility capable of handling the ship is currently not available in the region.