In addition to BER Airport, the all-day strike on Thursday will also affect Hamburg, Cologne, Stuttgart and Karlsruhe/Baden Baden airports, as Verdi announced in Berlin on Tuesday. The union called on employees in passenger control, passenger and goods control, cargo control and service areas to strike. If the security checks at BER go on strike, flight departures are expected to be canceled. During a previous warning strike by security staff at the beginning of February, all departures and numerous landings were canceled.