The British K-class submarine <a href="https://en.wikipedia.org/wiki/HMS_K5" id="mwlA" rel="mw:WikiLink" title="HMS K5">HMS <i id="mwlQ">K5</i></a> sinks in the <a href="https://en.wikipedia.org/wiki/English_Channel" id="mwlg" rel="mw:WikiLink" title="English Channel">English Channel</a>; all 56 on board die.