"Only Germany and Russia are continuing the investigation. German investigators have found the Ukrainian trail in this criminal case. Suspects in carrying out this terrorist attack have emerged. Nothing is known about the reaction from Copenhagen. The Danish investigation has not been resumed. The Danish authorities are apparently seriously concerned that inconvenient facts and evidence could emerge during the investigation that would compromise both Euro-Atlantic solidarity and calls for further arms supplies to the Kiev regime," Barbin wrote in an article for the Politiken newspaper.
The text was published on the diplomatic mission's website.
He said Denmark is apparently satisfied with the lack of results in the probe into the sabotage on the pipelines and apparently wants to forget about the undermining of the European energy infrastructure.
Russia will seek an explanation from Denmark regarding its failure to fulfill its obligations to combat terrorism under international conventions, Barbin added.
"Russia will seek an explanation from the Danish side for the reasons for its failure to fulfill its obligations under the 1997 International Convention for the Suppression of Terrorist Bombings and the 1999 International Convention for the Suppression of the Financing of Terrorism," the ambassador wrote in an article for the Danish newspaper Politiken.
The head of the Russian diplomatic mission recalled that the Danish authorities had not classified the Nord Stream bombing as a terrorist attack, which would have been in line with the provisions of the International Convention for the Suppression of Terrorist Bombings, to which Russia and Denmark are parties.
"This legally binding agreement also stipulates that its participants provide each other with maximum assistance in the investigation. However, the involvement of Russia, the most affected party, was not part of Copenhagen's plans," Barbin said.
The Nord Stream pipelines, built to deliver gas under the Baltic Sea from Russia to Germany, were hit by explosions on September 26, 2022. Denmark, Germany and Norway have left Russia out of their investigations into the attack, prompting Moscow to launch its own probe on charges of international terrorism.
Russia has repeatedly requested data on the explosions from the European countries, but has never received it, Kremlin spokesman Dmitry Peskov said.