According to him, the Danish prosecutor's office motivates the reluctance to cooperate by the fact that this could jeopardize the country's national security.

"Does this position of the Danish prosecutor's office express the presence in Copenhagen of fears that the Russian side may find out something that will create risks for Denmark's cooperation with the United States in the field of security or the supply of weapons by Denmark to Ukraine," RIA Novosti quoted Barbin as saying.

He noted that this may be the reason for the complete secrecy of the investigation of these terrorist attacks.

Earlier, Russian Foreign Minister Sergei Lavrov said that the West "did not lift a finger" to investigate the terrorist attacks on the Sevpotoks.

He also noted that Russia has information about attempts to blow up the Turkish Stream gas pipeline.