NATO said leaks on Nord Stream gas pipeline were sabotage behavior and announced that they would react resolute.

All existing information shows that this is the result of intentional, risky and irresponsible sabotage actions, NATO today said in a statement.

Any intentional attack on an important ally will be responded by a consistent and resolute response, the military alliance emphasizes.

The gas bubbles leaked from the Nord Stream 2 pipe to the Baltic sea surface, near the Danish Island Balholm, on September 27.

Swedish officials on September 26 announced the two leaked positions on the Nord Stream 1 pipe, one located in Denmark Eez, one of the Swedish EEZ, the same leaked position on Nord Stream 2 near the Island of Bornholm of Bornholm

At the time of detecting the incident, the two pipes were inactive but filled with gas.

Germany, Denmark and Sweden both identified two damaged pipes due to the intentional sabotage, but did not say they suspected which side was behind.

A British defense source said that this was a pre -calculated behavior, the culprit may have used a torpedo from a ship or unmanned device to near the pipe and then detonated.

Leaked positions on Nord Stream 1 and Nord Stream 2. Graphic: BBC.

Russia and the US both denied the leak of Nord Stream gas pipelines.

Nord Stream 1 and 2 recently became the focus of geopolitical tensions, when Europe elected Russia cut the supply of gas to weapons energy, and Moscow said that Western sanctions made them unable to guarantee.

Three consecutive leaks at two Nord Stream gas pipes from Russia to Germany show how vulnerable European energy infrastructure is.

Many countries claim to have sabotage behavior in the leak of gas pipeline from Russia to Germany Nord Stream but who behind is still controversial.