Communications between the tower and pilot were normal on approach and it’s not clear what went so drastically wrong when the plane touched down.

The crash of a passenger jet that flipped while landing in Toronto, Canada, is raising questions about not only cause of the accident but also the safety of flying.

All 80 people aboard the Delta flight from Minneapolis clambered out of the plane, with 18 suffering injuries.

A window-seat passenger described the plane as skidding on its side and finding himself upside-down. At least 18 people were injured, officials said.

All 80 people aboard the Delta plane that flipped upside down and crash landed in Toronto survived, but three, including a child, are critically injured.