The Norwegian Government has enacted a variety of new measures to prevent transmission of the coronavirus. The Ministry of Foreign Affairs advises against non-essential travel to all countries. For now, this advice will remain in effect until 14 April.
For more information about travel and coronavirus see: https://www.regjeringen.no/en/topics/foreign-affairs/reiseinformasjon/travel_coronavirus/id2691821/
The new travel advice for avoiding infection can be found
in Norwegian: helsenorge.no/koronavirus/reise
in English: helsenorge.no/koronavirus/travel-advice