An investigation is underway into the Delta plane that crash-landed Monday in Toronto. What caused it remains to be seen, but here's what we know so far.

The Transportation Safety Board of Canada is leading the inquiry into how the plane crash-landed in Toronto on Monday ...

A Delta Air Lines flight from Minneapolis crashed, turned upside down and caught fire on the runway at Toronto Pearson ...

Passenger footage from within Delta Airlines flight 4819 shows the moments after the plane crashed at Toronto’s Pearson ...

A Delta Air Lines regional jet from Minneapolis crash-landed Monday on the runway in Toronto, injuring at least 21 people.

NBC News senior correspondent Tom Costello invoked the names of President Donald Trump and Department of Government ...

All 80 people on the flight from Minnesota survived after it skidded along the runway at Toronto Pearson International ...

Senior NBC News correspondent Tom Costello immediately blamed the Toronto plane crash on President Donald Trump, citing the ...

A flight landed at the Toronto Pearson Airport Monday night upside down, leaving all 76 passengers and four crew members fighting for safety.

A Delta Air Lines plane has flipped upon arrival at Toronto’s Pearson Airport and ended up on its roof, injuring 18 people.

A plane crash occurred at Toronto Pearson International Airport, prompting a response from emergency and police authorities.

RECAP: A Delta plane crash-landed at Toronto's Pearson international airport on Monday injuring at least eight people.