Skeyes said there was a lack of air traffic controllers and this restriction is valid as from 22:00Z.
5 Brussels Airlines flights which had to land in Brussels after 23:00 won’t be able to do so.
Around 10 cargo flights are impacted says the VRT.
The flights from Africa of Brussels Airlines had to be delayed of one hour due to this restriction.
Skeyes already closed the whole Belgian airspace on 13 February 2019 during the National Strike.