Lufthansa ground staff return to strike this week in Germany, for just over 27 hours, from 4am on Tuesday to 7.10am on Wednesday. Affected are the airports of Frankfurt am Main, Munich, Hamburg, Berlin, Duesseldorf, Cologne-Bonn and Stuttgart.
The website of the German weekly Der Spiegel reports this, relaunching an announcement from the German public sector union, the "Ver.di" (or Verdi)