A second round of strikes has left thousands of commuters stranded as Lufthansa Airlines has been forced to cancel over 200 flights in and out Germany.
Tuesday's cancellations at the German flag carrier's Frankfurt hub came as a union chief threatened to hit every airport in Germany with a 24-hour strike on Friday.
Lufthansa, Germany's largest airline cancelled short and medium-haul flights but also services to and from Los Angeles, Houston, Chicago, Beijing and Mexico City.
The Unabhaengige Flugbegleiter Organisation (UFO) union and Lufthansa are arguing over pay and working conditions.
Tuesday's groundings come as part of the extension of a cabin crew strike in Frankfurt last week that has now spread to Munich and Berlin.
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