Summer flights across Europe are at risk of disruption from air traffic control (ATC) strikes.
A trade union representing staff at Eurocontrol, which manages European airspace, is threatening to take industrial action in a row over issues such as recruitment, management and rosters.
The Union Syndicale Bruxelles (USB), which represents EU civil servants, wrote to Eurocontrol bosses stating that industrial action will take place with just a five-day notice period, and could begin next week.
