Entire city evacuated amid massive Canada wildfire

(CNN)Authorities ordered the mandatory evacuation of the entire Canadian city of Fort McMurray in northern Alberta because of a wildfire.

The Regional Municipality of Wood Buffalo in Alberta tweeted the expanded order Tuesday evening.

Nine air tankers and 100 firefighters have been battling the blaze, which began Sunday. The fire was estimated to be 7,400 acres as of Tuesday morning, according CBC News.The blaze has engulfed many homes and businesses but the exact number of burned structures isn't yet known, according to the Alberta Emergency Management Agency. No injuries or casualties have been reported.

With a population of more than 60,000 in Fort McMurray, the evacuation is the largest wildlife evacuation in Alberta's history, according to CBC News.

The only hospital in the city, Northern Lights Regional Health Centre, evacuated all 105 patients, the Alberta Government said.

Prime Minster Justin Trudeau tweeted his support.

"My thoughts are with people affected by the fire in Fort McMurray tonight," he posted. "We stand ready to help."Residents used social media to share their images of the massive wildfire enclosing their town

"I am out. I am safe," tweeted one resident. "I've never been more scared in my life. Praying for my home right now."