The action will involve “parallel walkouts, rallies, meetings and strikes across Europe,” the air traffic controllers’ federation HungaroControl announced. Control will hold a two-hour strike action from 9am to 11am to involve reduced air control services for flights in Hungarian airspace.

The unions IDFSz and LIFSz will also join the two-hour labor action, providing minimum services, while the union LIGOSz will express solidarity at a workers’ forum.

The labor action may cause disruptions and delays, according to the aformentioned unions.

— material from MTI was used in this article