Frankfurt, Munich, Dusseldorf, Cologne/Bonn, Dortmund, and Hannover airports in Germany went on strike this morning, resulting in hundreds of cancellations and delays. Verdi, a German labor union, called the strike and is pushing for a 6% salary increase for over 2.1million public service workers across the country. This is drastically higher than the 3% pay increase the German government has offered the union, prompting the Interior Minister, Thomas de Maizeiere, to deem the strike “totally inappropriate”. Delays are expected to continue throughout the day as major airlines such as Lufthansa have had to cancel up to 895 flights.
See "Lufthansa, Air Berlin Cut Flights on German Airport Strike", Richard Weiss, Bloomberg, April 27, 2016