One child and two adults have been critically injured after a plane crashed and overturned while landing at Toronto Pearson Airport in Canada, according to emergency services.

Images shared on social media show a plane which appears to have flipped over and is lying on its roof on the snow-covered tarmac. It appears to be missing at least one of its wings.

Toronto Pearson airport said it involved a Delta Air Lines flight arriving from Minneapolis, and that "all passengers and crew are accounted for".

Fifteen people have been transported to hospital in total, the local paramedic service said.

Ontario Air Ambulance Service Orange said it had dispatched three air ambulance helicopters and two land ambulances to the scene.

The US Federal Aviation Authority (FAA) said the plane involved was Delta Air Lines Flight 4819, being operated by Endeavor Air.

All 80 people on board were evacuated, it said, adding that the Transportation Safety Board of Canada will be in charge of investigating what happened.

Delta said it was aware of reports of the incident, and it was "working to confirm any details and will share the most current information... as soon as it becomes available".

Video footage shared on social media shows people clambering out of the overturned aircraft, with fire crews spraying it with foam.

Constable Sarah Patten of the Peel Regional Police in Ontario said "There is a plane crash, however, we don't know the circumstances surrounding it at this point," according to the news agency Reuters.

"It is my understanding that most of the passengers are out and unharmed but we're still trying to make sure so we're still on scene investigating," she said.

Ontario Premier Doug Ford said provincial officials are in contact with the airport and local authorities and will provide any help that's needed.

After the crash, the airport's arrival and departure boards showed scores of delays and cancellations to flights.

The FAA said there was a ground stop at the airport - which requires aircraft to remain on the ground.

Toronto Pearson Airport had been experiencing weather-related delays over the last few days, with heavy snowfall and freezing temperatures battering parts of Ontario.