Focus likely on whether plane touched down too late in its glide path on to tarmac to enable it to stop safely

Federal investigators have started collecting evidence, including a flight data recorder, following the Sunday crash of an Amazon cargo jet at Miami international airport that killed five people and injured five others.

Speaking at a press conference on Monday, Jennifer Homendy, chair of the National Transportation Safety Board (NTSB), announced a preliminary investigation into the Amazon Air flight 7598 accident involving a Boeing 767-33 Alpha operated by 21 Air, an all-cargo airline.