Terry Knowles, who witnessed the plane crash in Fort Lauderdale, Florida, told the Associated Press the aircraft was "an instantaneous fireball" when it hit the ground.
Mr Knowles said:
I was working on a car, and I heard the engine behind me. I turned around and saw the plane coming right over the building in front of me.
It hit the ground and exploded. It was an instantaneous fireball.
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Sunny skies towards the east, with more cloud and showers towards the west.