"We didn't have a respectful tone yesterday. We express regret for how things unfolded. The intention was never to embarrass the (Alberta) premier or the premier of Ontario."
The fire overnight destroyed a 665-room workcamp north of the city and two other camps are threatened by the flames. Two explosions in the city damaged 10 homes.
Wildfires that levelled neighbourhoods in Fort McMurray slowed their rampage through tinder dry forest in northern Alberta on Sunday, allowing firefighters in the oilpatch city to focus on hotspots.
A massive convoy is underway to move evacuees stranded at oilfield camps north of Fort McMurray, Alta., through the fire-ravaged community to safe areas south of the oilsands capital.
It's considered to be the largest fire evacuation in Alberta history. The entire city of Fort McMurray, in the heart of the province's oil sands region, was evacuated due to a raging wildfire.