A huge wildfire which devastated the Canadian oil town of Fort McMurray could double in size over the next 24 hours, officials say.
The blaze now covers an area larger than New York City and is being fanned by winds and feeding on dry vegetation.
The flames are moving away from the town, most of whose inhabitants have reached safety.
But many are still stuck north of Fort McMurray and evacuations by road and air are resuming.
More than 80,000 people were evacuated from the city earlier this week.
Thousands of people have been airlifted out but a mass convoy evacuating people from oil worker camps in the north was halted on Friday as huge flames flanked the road.
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At least 2,500 made it through the flame-damaged city and small convoys resumed early on Saturday. Another 4,000 people are also due to be flown out.
