Flights are unable to take off or land as a result of the measure. Overflying aircraft flying above 7,500 metres remain unaffected and are directed by the European air traffic control agency.
The air traffic control agency insists there is no danger for the safety of air traffic. The measure is an ultimate step taken to safeguard air traffic safety. The agency is unable to say how long air traffic in Belgian airspace will be at a standstill.