About north of Mørsvikbotn, near the lake Mørsvikvatnet at "Mørsry", the German Army had a prisoner-of-war camp during World War II. The German Army soldiers serving here were from Austria, housing mostly Russian POWs. They were building a railway, which was intended to be a link between Fauske and Narvik. This was to be the so-called "Polarbanen". Some ruins of the camp, the foundations of the causeway for the railway, a tunnel, and roads can still be observed in the area. A small cemetery for fallen Russian soldiers is located close to the camp. The Camp Commander was considered by the locals to be quite "humane". Only a very few Russian POWs were shot or died of exhaustion during the five years of the war. The small camp cemetery was emptied of corpses shortly after the war. Their remains now rest with about 8,000 other POWs at the large war cemetery at Tjøtta, south of Sandnessjøen.
Escapes
Some escapes are known by the Norwegian population living close to the camp. The first escape was from the small subsidiary camp at Sildhopen. The local German guard trusted the Red Army POWs. Late one evening, after some alcohol consumption, one of the Russians used an axe on the guard's head. Thereafter, the POWs escaped east over the mountains. For unknown reasons they went the wrong direction after the climb over first mountain, and headed south down to the lake Kobbvatnet. There, they were recaptured. They were brought back to Mørsry, and executed while standing with their backs to a large stone. There were bullet marks for many years after the war on this stone. Another escape by Polish workers from the nearby camp, Tømmernesset, escaped to Sweden via Mørsvikvatnet. Some say the two young Poles came from the camp at Mørsry. They were helped by a local, Alfred M. Iversen, who happened to meet them in the area. He promised he would meet them at the shores of a small lake the following Sunday. This was "Lisjvatnet", a small lake in the same valley as Sildhopvatnet. So the following Sunday he met them there bringing equipment and a bottle of vodka. Giving them a good description of how to find their way to Sweden. He also gave them his address, so that they could "send him a postcard from Sweden", which they did after the war. One of them, Aleksander Robaszkiewicz, then living in Australia, visited Mørsvikbotn in the late 1990s. But did not meet his helper Alfred M. Iversen, as he died some years before. There was also another escape from the camp in Mørsry, or possibly an escape from a labor team. The POW was recaptured somewhere north of Tennvannet / Tennvasskollen, and was shot nearby on the northwest shore of that lake. This was observed by Reidar Kirkfjell and his wife Ninni who lived nearby.