Royal Caribbean Cruises has confirmed plans to build a fifth Oasis-class ship, as well as two new ships for . 

The news comes days after the launch of Royal Caribbean International’s third Oasis-class ship, Harmony of the Seas. The fourth will arrive in 2018, and the fifth in 2021.

The company has placed an order for two additional Edge-class ships for , which will be delivered in autumn 2021 and 2022.

These will follow the first two ships, which are scheduled for 2018 and 2020.

READ: Harmony of the Seas: First thoughts 

Royal Caribbean Cruises chairman and chief executive, Richard Fain, said: “The response to the arrival of Harmony of the Seas is staggering, eliciting excitement from eager cruisers from markets on both sides of the Atlantic.

“And Edge-class is one of the most highly anticipated new projects, following the high bar of Modern Luxury design set by its predecessors.”

Michael Bayley, president and CEO of Royal Caribbean International, added that the positive response to Harmony was proof that “this class of ship will continue to drive exceptional performance for the brand”.

Lisa Lutoff-Perlo, president and chief executive of , said: “Although our first Edge-class vessel is still over two years away from delivery, there has been a tremendous amount of interest around the new standard of style Edge-class will introduce.”

Royal Caribbean Cruises owns Royal Caribbean International, and Azamara Club Cruises.