'Catastrophic wildfires' force thousands to flee in Canada

The Canadian city of Fort McMurray remained under threat from catastrophic wildfires Wednesday, authorities warned, after more than 80,000 residents were forced to flee the raging inferno sweeping through Alberta's oil sands region. "This fire is absolutely devastating," said Prime Minister Justin Trudeau. Alberta emergency services announced shortly before midnight Tuesday that all of Fort McMurray, a city of about 100,000, was under a mandatory evacuation order.