Danish F-16 interceptor aircraft detected a gas leak from the Nord Stream 2 pipeline near Bornholm in September 2022.
Danish police said they had closed their investigations into the explosions that destroyed two pipelines intended to ship Russian gas to Germany.
The authorities concluded that the Nord Stream 1 and 2 pipelines had been “sabotaged” in September 2022, but said there was no basis to pursue a criminal case.
Responsibility for the suspected sabotage remains unknown.
Germany is still investigating the incident.
In September 2022, leaks were discovered in three of four gas pipelines east of the Danish island of Bornholm in the Baltic Sea. Seismological institutes had recorded large underwater explosions shortly before that.
Shortly after, Swedish prosecutors said traces of explosives were found on several items recovered from the site, and stated that the explosions were due to “serious vandalism.”
The pipelines were built by the Russian gas giant Gazprom. Nord Stream 1 operated from 2011 to 2022. Nord Stream 2 was completed in 2021, but was never used because Germany halted the project days after Russia's large-scale invasion of Ukraine in February 2022.
Danish police said the investigation by Danish intelligence agency PET was “complex and comprehensive” and said they would not provide further comment on the case.
In response to the Danish police statement, Kremlin spokesman Dmitry Peskov said: “The situation is close to absurd.
“On the one hand, they realize that an intentional act of sabotage has occurred, but on the other hand they are not moving forward.”
Moscow denies responsibility, saying that the United States and Britain are responsible.
Last year, US intelligence officials told the New York Times that a pro-Ukrainian group may have planned the attack. The Ukrainian government denied involvement.
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