Lufthansa Cargo (LC) has warned customers that strikes at Munich Airport (MUC) on the 25th and Friday will result in its operations being "greatly restricted".
German trade union ver.di has announced that MUC security and ground staff will go on a "warning strike" on February 27-28.
Lufthansa Cargo warned customers yesterday: "As a result, it is highly likely that no cargo will be transported from Munich on Lufthansa Group aircraft, either to or via Munich, between midnight on Thursday and 23:59 on Friday evening."
In addition, from noon on the 26th to midnight on Friday, the LC has banned land transport, temperature sensitive products, live animals and perishable items for inbound highway feeder services.
For affected shippers who had contracts with LC, it clarified that this was "an exceptional incident and they have been properly informed".
The German airline pledged to minimize the impact and asked customers to "proactively check the status of cargo shipments through the electronic tracking service of their booked flights."
It added: "We are deeply sorry for the necessary adjustments and any inconvenience this may cause."
Munich Airport, Germany's second busiest, stressed it would not be closed during the two-day strike, saying it was "up to individual companies to decide whether to cancel flights".
According to MUC, airlines registered a total of about 830 flights on Thursday and Friday, but the level of participation of various service providers in the strike and the impact on flight operations could not be predicted.
The company told Loadstar that it expects "a significant impact on all flight operations, including cargo and belly loads," adding: "Airports, airlines and all partners aim to ensure maximum stability and minimize inconvenience through forward planning."
At the same time, ver.di also called on employees at all parcel centers in Germany to go on a warning strike from the evening of the 25th to the early morning of the 26th.
Deutsche Post, a division of the DHL Group, has been negotiating a pay rise for its employees since early January, but after three rounds of talks, no agreement has been reached and more talks are planned for next week.