A Delta flight crashed while landing at Toronto Pearson International Airport on Monday and the plane was seen upside-down on the snow-covered ground.
All 80 passengers and crew on Flight 4819 have been evacuated, according to the Federal Aviation Administration. The flight originated in Minneapolis.
What caused the plane to flip and catch fire was not immediately clear but the investigation is already underway, sources told ABC News. The Transportation Safety Board of Canada will lead the investigation, the FAA said.
The Toronto Airport is closed until at least 4:30 p.m.
While the cause is unknown, the crash unfolded during blowing snow and strong wind gusts in the region. Winds reached 40 mph on the ground and were even stronger several hundred feet in the air.
