Belgium today closed its airspace following a computer glitch linked to problems downloading data related to flight plans, said Belgocontrol, the company tasked with controlling the country's skies.
Planes have not been allowed to fly over Belgium since 4:00 pm local time (1400 GMT).
"Some planes are grounded, others have been prevented from landing," Belgocontrol's spokesman Alain Kniebs told AFP.
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