Norwegian company Trygve Tønjum Import AS had, for some time, been importing potatoes from North Cyprus. Until 1997, the Norwegian agricultural authorities accepted certificates issued by the Turkish Cypriot authorities. However, as a result of strong protests from the Greek Cypriot administration, the Norwegian Ministry of Foreign Affairs, in a letter dated 9 April 1997, told its Ministry of Agriculture that only certificates issued only by the “Republic of Cyprus” would be accepted for imports from Cyprus that required health certificates.

Acting upon the request of their Foreign Ministry, the Norwegian Ministry of Agriculture circulated an instruction (Circular M-18/97) on 23 April 1997 that, as from 1 October 1997, certificates issued by the Turkish Cypriot authorities would no longer be valid to Norway. Trygve Tønjum Import AS decided to challenge the Norwegian Government’s decision in the courts. However, importing potatoes from North Cyprus into Norway remains banned until the judicial process is completed.

Source - http://www.embargoed.org/living_with_embargoes.php