Wildfires are threatening to engulf the remote city of Fort McMurray in western Canada. <br /><br /> One neighbourhood of the city has already been destroyed. Local authorities say others have been badly damaged.<br /><br /> Hot, dry winds have been forecast and the fear is they could fan the flames further.<br /><br /> Nine air tankers, more than a dozen helicopters and around 150 firefighters are on the scene.<br /><br /> The province of Alberta has asked for help to bring the blaze under control.<br /><br /> What about the residents?<br /><br /> UPDATED: Whole neighbourhoods destroyed by raging forest fire in Fort McMurray https://t.co/SJojqyvvsv pic.twitter.com/bMfbnHTvAY— CP24 (@CP24) May 4, 2016<br /><br /> The regional government has ordered all 80,000 residents to evacuate the city.<br /><br /> An estimated 44,000 had fled by late on Tuesday. <br /><br /> Thinking of my friends in the Great White North. #Wildfire destroys homes in Fort McMurray; 80,000 ordered evacuated https://t.co/mSPiZZSaZ4— Smokey Bear (@smokey_bear) May 4, 2016<br /><br /> 8,000 are at a reception cen