The Transportation Safety Board of Canada released a preliminary report Thursday of their investigation into the Delta plane that took off from Minneapolis and flipped upside down and caught fire while landing at Toronto Pearson Airport.

The Transportation Safety Board of Canada will release a preliminary report into the crash of a Delta Airlines commuter jet at Toronto's Pearson airport on Thursday, it said on Wednesday.

A preliminary report into the Delta Air Lines flight that flipped upside down in a crash landing at Toronto's Pearson International Airport last month shows the plane had been descending at a high rate of speed. Twenty-one people were injured in the botched landing on Feb. 17.