The <a href="https://en.wikipedia.org/wiki/Soviet_Union" id="mw6A" rel="mw:WikiLink" title="Soviet Union">Soviet</a> passenger liner <a about="#mwt40" data-mw='{"parts":[{"template":{"target":{"wt":"SS","href":"./Template:SS"},"params":{"1":{"wt":"Admiral Nakhimov"},"2":{"wt":""},"3":{"wt":"2"}},"i":0}}]}' href="https://en.wikipedia.org/wiki/SS_Admiral_Nakhimov" id="mw6Q" rel="mw:WikiLink" title="SS Admiral Nakhimov" typeof="mw:Transclusion"><i>Admiral Nakhimov</i></a> sinks in the <a href="https://en.wikipedia.org/wiki/Black_Sea" id="mw6g" rel="mw:WikiLink" title="Black Sea">Black Sea</a> after colliding with the bulk carrier <i id="mw6w">Pyotr Vasev</i>, killing 423.