A small plane involved in upgrading a runway at Dubai International Airport crashed Thursday night, killing four people and halting traffic at the world's busiest airport for international travel for almost an hour.
The General Civil Aviation Authority said three of the dead were British and one was South African.
The four-seat plane came down at about 19:30 local time, killing the pilot, co-pilot and two passengers.
Following the crash flights were delayed and diverted as the airport - one of the world's busiest, based on worldwide passenger traffic - was closed for 45 minutes.
Flight Calibrations Service announced in November it signed a contract to work on the airport's "navaids", the beacons around an airport that show pilots where runways are and how to land on them.
Dubai International Airport, the world's busiest by international passenger traffic, was closed between 7.36pm and 8.22pm local time before reopening, said Dubai Airports.
Four passengers were in the plane. "The relevant teams are on the scene". An investigation team arrived at the scene of the crash, with the GCAA saying air traffic at the airport was back to normal, adding that it will continue the investigation and provide updates on the progress.
Honeywell, however, later clarified that it did not own the plane.
A spokesman said: '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, ' it added. "We are waiting for more details", a statement read.