a recent train wreck
... that heavy fog meant that helicopters were unable to participate in rescue operations after a recent train wreck in Saxony-Anhalt, Germany?
... that heavy fog meant that helicopters were unable to participate in rescue operations after <b id="mwEQ0"><a class="mw-redirect" href="./2011_Saxony-Anhalt_train_accident" id="mwEQ4" rel="mw:WikiLink" title="2011 Saxony-Anhalt train accident">a recent train wreck</a></b> in <a href="./Saxony-Anhalt" id="mwEQ8" rel="mw:WikiLink" title="Saxony-Anhalt">Saxony-Anhalt</a>, Germany?