Canadian officials are airlifting some 8,000 people who fled north of Fort McMurray - the city which has been devastated by a massive wildfire.
They also hope that the only motorway to the south will become safe today to move the remaining 17,000 people, who are in danger of becoming trapped.
The fire in the province of Alberta has grown to 850 square kilo meters.
The blaze has already destroyed more than 1,600 structures in Fort McMurray.
Most of those who fled north have been staying in oil sands work camps in the remote area.