Thirty-three crew members on Hurtigruten's Roald Amundsen have coronavirus and Norwegian authorities ordered passengers from the last two cruises to self-quarantine.

This applies to the July 17 and July 24 sailings to Svalbard.

Passenger from July 17 cruise tests positive

As part of the contract tracing, Hurtigruten learned a passenger on the July 17 cruise tested positive after returning home.

Roald Amundsen remains alongside in Tromsø, where the last voyage ended Friday and four crew were hospitalized at University Hospital in Northern Norway.

Test results received Saturday morning of the 154 crew on board showed another 29 were positive, 120 negative and five will be retested.

Passengers must self-quarantine for 10 days

Norwegian health officials said passengers must quarantine and will be followed up by the local health service where they live. The quarantine is valid for 10 days after leaving the ship.

About 60 passengers who disembarked Friday are in quarantine in Tromsø.

Nationalities of the cew and passengers were not immediately available.

According to Hurtigruten, the four crew members who were first confirmed infected were routinely isolated several days ago due to another illness, without showing any symptoms of COVID-19 at that time. The company also said the the 154 crew still on board were asymptomatic.

‘The most important thing for us now is to take care of and follow up all our guests and colleagues. We work closely with the National Institute of Public Health, Tromsø municipality and local health authorities for follow-up, notification, further testing and infection tracing,’ Hurtigruten spokesman Rune Thomas Ege said.

Sailings canceled until early September

Roald Amundsen was to sail to Svalbard on Friday afternoon. The ship’s cruises are canceled until early September.

Hurtigruten became one of the first companies to resume sailing in June, along the coast of Norway. Voyages were planned to ramp up, with 14 of 16 ships to return in August and September.