German airports have cancelled greater than 600 flights due to a strike by safety employees in a pay dispute.
The strike centres on airports in western Germany: Düsseldorf (the nation’s third-largest), Cologne-Bonn and Stuttgart.
In Düsseldorf about 60,000 passengers are affected, with two-thirds of flights cancelled, ARD TV experiences.
The Verdi union needs a pay rise to €20 (£18; $23) per hour for safety employees, from the current price of €17.
ARD says many travellers had time to make different preparations, because the strike had been introduced upfront. Safety employees are reported to be very indignant over their working situations.
German media say 350 out of 570 deliberate flights have been cancelled in Düsseldorf; in Cologne 130 out of 200 flights are cancelled, and in Stuttgart 142 out of 270.
About 50 flights have been cancelled when safety employees went on strike at Berlin’s Tegel and Schönefeld airports on Monday.