Close to 20,000 passengers were disrupted after their flights were cancelled on short notice due to a wildcat strike by Belgian ATC controllers and Ryanair has said it is "unacceptable"

Close to 20,000 passengers were disrupted after their flights were cancelled on short notice due to a wildcat strike by Belgian ATC controllers and Ryanair has said it is…

The disruption hit Zaventem and Charleroi airports without warning on Tuesday, with Ryanair since issuing a statement slamming the lack of notice given before the sudden walkout.