Viking Ocean Cruises has taken delivery of its third ship ahead of its maiden voyage next month.

Viking Sky will be joined by the fourth identical 930-passenger vessel, Viking Sun, in November to start the line’s first world cruise.

Viking Spirit will be added to the fleet in 2018 to sail itineraries in Australia, Asia and Alaska.

A sixth, yet-to-be-named ship will be delivered in 2019.

The all-balcony cabin Viking Sky is sister ship Viking Star and Viking Sea, which entered service in 2015 and 2016.

Viking Sky was handed over to the company at the Fincantieri shipyard in Ancona, Italy.

The vessel will make its debut on February 25 on its first cruise from Civitavecchia, the port of Rome.

Viking Sky will be christened on June 22 in Tromsø in Norway after sailing spring itineraries in the Mediterranean.

The ship’s maiden season includes sailing in Scandinavia and the Baltic before crossing the Atlantic in September to the Americas and Caribbean.

Viking Cruises chairman Torstein Hagen said: “In the past two years, we have been encouraged by the overwhelmingly positive response our first two ocean ships have generated among our guests and travel industry partners.

“Today we mark an important milestone in welcoming the third ship to our fleet.

“By the end of 2017 – our 20th year in business – we will also welcome our fourth ship, doubling our fleet in less than a year.

“With our fast-growing fleet and innovative design, we look forward to introducing even more experienced travellers to the Viking way of destination-focused itineraries in the years to come.”