Complex sentence: The mines had been laid by the German minelayer "COBRA" and some years after the end of the war, the Norwegian Navy located KNM "Uredd" in Fugløyfjord southwest of Bodø, by studying German maps of minefields along the Norwegian coast.
Split into simpler sentences: The mines had been laid by the German minelayer "COBRA". Some years after the end of the war, the Norwegian Navy located KNM "Uredd" in Fugløyfjord southwest of Bodø, by studying German maps of minefields along the Norwegian coast.