Tui Cruises has placed an order for two new-concept LNG-powered ships with Fincantieri.

The new 161,000 gross tonne units will be the largest ships ever built in Italy and will be constructed at Fincantieri’s Monfalcone shipyard.

The ships will be delivered in 2024 and 2026 to the line in a joint venture between Tui AG and Royal Caribbean Cruises and will be powered using liquefied natural gas (LNG).

Wybcke Meier, Tui Cruises chief executive, said: “With the new class of ships we are responding to the wishes of our guests and creating offerings that will also inspire new cruise passengers.

“As with the other ships in the fleet, the passenger/space ratio remains generous.

“The decision to run the two additional low-emission new builds is a logical continuation of our environmental strategy.”

Tui Cruises will also introduce two new ships in 2019 and 2023 with a total bed capacity of about 18,800.