Operator of plane in Miami crash had prior safety complaints by former employees

The Amazon Prime Air Boeing 767 cargo plane that crashed off a Miami runway​ on Sunday, killing five people, was operated by a North Carolina company that has been accused by past employees of violating safety regulations,

6 dead, including children, in separate plane crashes in California

Here's what we know about the two incidents that occurred in northwest Fresno and at the Montgomery-Gibbs Executive Airport.