The German cruiser <a href="https://en.wikipedia.org/wiki/German_cruiser_Bl%C3%BCcher" class="extiw" title="en:German cruiser Blücher"><i>Blücher</i></a> listing heavily to port after being hit by cannon fire and torpedoes from the Norwegian coastal fortress <a href="https://en.wikipedia.org/wiki/Oscarsborg_Fortress" class="extiw" title="en:Oscarsborg Fortress">Oscarsborg</a>. She sank a short time later.
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