Bashkirian Airlines Flight 2937, a <a href="https://en.wikipedia.org/wiki/Tupolev_Tu-154" id="mwAkI" rel="mw:WikiLink" title="Tupolev Tu-154">Tupolev Tu-154</a>, and DHL Flight 611, a <a href="https://en.wikipedia.org/wiki/Boeing_757" id="mwAkM" rel="mw:WikiLink" title="Boeing 757">Boeing 757</a>, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Überlingen_mid-air_collision" id="mwAkQ" rel="mw:WikiLink" title="Überlingen mid-air collision">collide in mid-air</a> over <a href="https://en.wikipedia.org/wiki/Überlingen" id="mwAkU" rel="mw:WikiLink" title="Überlingen">Überlingen</a>, southern Germany, killing all 71 on board both planes.