In pictures: Mass evacuation of Fort McMurrayPublished4 May 2016Shareclose panelShare pageCopy linkAbout sharingImage source, CBC News / ReutersImage caption, The Canadian city of Fort McMurray has been evacuated because of a huge wildfire.Image source, Mary Anne Sexsmith-Segato/Canadian PressImage caption, It began on Sunday, south of Fort McMurray, some 380km (235 miles) north of the provincial capital, EdmontonImage source, Greg Halinda/The Canadian Press via APImage caption, Some 80,000 people were told to leave as the blaze swept into Fort McMurray, gateway to the oil sands region, causing gridlock on the roads.Image source, Kitty Cochrane/The Canadian Press via APImage caption, Alberta Premier Rachel Notley called it the "biggest evacuation... in the history of the province".Image source, Topher Seguin / ReutersImage caption, Emergency shelters were constructed in towns such as Conklin, Alberta.Image source, Topher Seguin / ReutersImage caption, Fort McMurray resident Crystal Maltais puts her daughter's seatbelt on, as they prepare to move on from Conklin.Image source, Kitty Cochrane / The Canadian Press / APImage caption, About 100 firefighters are tackling the blaze, backed up by nine air tankers and more than a dozen helicopters, officials say. Reinforcements are on their way.