Brittany Ferries said it was laying up two ships and altering its schedule on routes from Portsmouth and Plymouth. About 50,000 passengers with sailings already booked are likely to be be affected.

Brittany Ferries, which is the majority shareholder in Condor Ferries serving the Channel Islands, also operates from Plymouth and Poole.

Malo, Brittany Ferries new LNG-electric hybrid ship, arrived and left Portsmouth without subjecting the port city to the ...