Who is investigating the Delta Air Lines crash at Toronto Pearson International Airport?

The Delta Air Lines crash at Toronto Pearson International Airport is being investigated through a joint effort between US and Canadian authorities. Accident investigators from the United States have been dispatched to Toronto to assist their Canadian counterparts with an inquiry into the incident. This collaborative approach suggests the seriousness of the crash, which involved 80 passengers, 18 of whom were injured, though fortunately all survived despite the aircraft flipping upside down during landing.