This is stated in the comment of the official representative of the Russian Foreign Ministry Maria Zakharova on the website of the Russian Foreign Ministry.
"Despite the refusal of the Danish side in the joint investigation of sabotage, the Russian Foreign Ministry will continue to seek answers from Copenhagen to the questions posed earlier," Zakharova said.
She stressed that it would not be possible to "sweep under the carpet" this issue.
Earlier, Danish Foreign Minister Lars Løkke Rasmussen said that Copenhagen would not allow Moscow to participate in the investigation of sabotage on Nord Streams.
Presidential Aide for International Affairs Yuri Ushakov called Denmark's position on Russia's proposal for a joint investigation at Nord Streams unconstructive.