"All operations at the Dubai airport are running smoothly after a slight delay and diversion of some flights as a precautionary measure to ensure security following a minor incident involving a small plane", the Dubai Media Office announced.
According to the Dubai Civil Aviation Authority, three Britons and one South African were killed in the plane crash.
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The four-seat plane, a DA42 registered in the United Kingdom, was on a mission to calibrate terrestrial navigation systems at the airport, the Dubai Civil Aviation Authority's statement said.
An investigation into the incident is underway.