Gazprom Germania and its subsidiaries operate gas storage facilities and gas trading in Germany and are co-owners of gas pipelines.

"The German government and Federal Network Agency, as trustees of Gazprom Germania, are already in the process of taking the necessary precautions and preparing for various scenarios," the spokesperson said in a statement.

Gas supplies are currently guaranteed and constantly checked, added the spokesperson.

The network agency released a similar statement, saying it had no further information and was preparing for different scenarios.

Russia's Gazprom gave up ownership of the firm last month without explanation, forcing Germany's energy network regulator to take control of operations there.

(Additional reporting by Tom Kaeckenhoff in Duesseldorf; Reporting by Madeline Chambers; Editing by Leslie Adler and Gareth Jones)