Authorities in the US state of Kentucky have warned the death toll from a UPS cargo plane crash is likely to rise above nine.

Investigators from the National Transportation Safety Board have now arrived at the scene to try and work out the cause of the crash, which has shocked the community.

Emergency service crews searched for more victims on Wednesday (Thursday AEST) after the plane crashed and exploded in a massive fireball at the company's global aviation hub in Kentucky, creating an inferno that consumed the enormous aircraft, authorities said.

Governor Andy Beshear predicted the death toll would grow, noting that 16 families had gathered at a reunification centre for news of loved ones.

The crash was captured in horrifying video taken from a truck parked about one kilometre from

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