Thousands of air passengers will see their travel plans disrupted this Friday, as Ryanair pilots will engage in strike action across four European nations.
Pilots across Germany, Ireland, Belgium and Sweden will down tools on Friday and walk out amidst a deepening row with management at the airline.
It is understood that Ryanair, while it agreed last year to recognise unions, has not yet established any collective employment deals across Europe.
The row continues.