This was reported by the German mass media.
It became known that a loss of pressure was detected in pipe A, and the responsible naval authorities of Germany, Denmark, Sweden, Finland and Russia were immediately informed.
This was reported by the representative of the gas pipeline operator Nord Stream 2 AG, Ulrich Lissek, and it is currently unknown what caused the drop in pressure.
Lissek also told the agency that "there has to be a hole somewhere, but no one knows where." There is a suspicion that gas may seep in the coastal zone.
The publication also reports that it is very difficult to investigate the causes of the drop in pressure of Nord Stream 2 AG: sanctions are in effect, there are almost no employees, and funds are frozen.
According to Lissek, there are no Nord Stream 2 AG personnel in Lubmin, where the pipeline exits in Germany.
The Ministry of Economy announced in Berlin that the reasons and exact facts of the incident are not yet clear. "We are currently contacting the relevant authorities to clarify this issue," said the press secretary.
It is still being determined whether the incident took place in German territorial waters.