Less than two days after Delta Air Lines offered $30,000 to each passenger on board the flight that crashed and flipped in Toronto on Monday afternoon, the company is facing its first two lawsuits in the incident — and they likely won't be the last.

Investigators are probing the causes of an unusual plane crash at Canada's largest airport on Monday, when a regional jet flipped upside down upon landing during windy weather, sending 21 of the 80 people on board to hospital.