Canadian prime minister Justin Trudeau said 138 of the passengers on a Ukrainian jet that crashed in Iran killing all on board were connecting to Canada and offered his deepest condolences on behalf of the nation. A Ukrainian airliner crashed shortly after take-off from Tehran on Wednesday, killing all 176 people on board and sparking an international scramble to establish the cause. The Ukraine International Airlines Boeing 737-800, en route to Kiev and carrying mostly Iranians and Iranian-Canadians, crashed hours after Iran fired missiles at bases housing US forces in Iraq