Uniworld has announced it will add four new ships to its fleet.

The ships will launch on the Nile in Egypt, the Douro in Portugal and the Mekong in Vietnam in 2020, followed by a fourth on the Volga in Russia in 2021.

The ships will replace existing vessels in each destination and will be built to the same specification as the brand’s Super Ships.

Uniworld also announced it will upgrade the River Countess in 2020.

Uniworld’s President & CEO Ellen Bettridge said: “We are delighted to bring our unique and elegantly designed one-of-a-kind vessels to the rivers in Egypt, Portugal, Vietnam and Russia for the first time.

“We strive to provide our discerning guests with an unforgettable river cruise experience both on and off shore, therefore we have plans to offer our one-of-a-kind ships on our popular itineraries along the Nile, Douro, Mekong and the Volga.

“With a beautiful upgrade of the River Countess also planned for 2020, our brand is truly innovating and these new developments demonstrates that Uniworld will always be ahead of the competition as the luxury leader in river cruising.”

The announcement follows the successful launch of the S.S. Joie de Vivre on the Seine in 2017 and Super Ship transformations of the S.S. Beatrice in 2018, and S.S. Bon Voyage, which is set to sail in France in spring 2019.