A 106-car <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Canadian_Pacific" id="mwARQ" rel="mw:WikiLink" title="Canadian Pacific">Canadian Pacific</a> freight train carrying explosive and poisonous chemicals from <a href="https://en.wikipedia.org/wiki/Windsor,_Ontario" id="mwARU" rel="mw:WikiLink" title="Windsor, Ontario">Windsor, Ontario</a>, Canada <a href="https://en.wikipedia.org/wiki/1979_Mississauga_train_derailment" id="mwARY" rel="mw:WikiLink" title="1979 Mississauga train derailment">derails</a> in <a href="https://en.wikipedia.org/wiki/Mississauga" id="mwARc" rel="mw:WikiLink" title="Mississauga">Mississauga</a>, Ontario.