The reason for the concerns is that too much salt water risks getting into the pipes before they are repaired, and thus corroding the pipelines, according to Tagesspiegel's information.
Germany's defense minister announced earlier on Wednesday that the German navy will participate in the investigation of the damage, which NATO, the EU and several governments in Europe are referring to as sabotage.
As a first step, surveillance of German sovereign waters will be intensified, where ships will review relevant routes and critical infrastructure.
At the same time, Germany is strengthening the protection of coastal areas on the North Sea and the Baltic Sea, as well as the terminals being built for liquefied gas and other communication and underwater cables.