Russia demands answers from Copenhagen on the explosions on gas pipelines Nord Stream 1 and 2, a statement from Russia’s foreign ministry reveals on Saturday.

”Despite the refusal of the Danish side to jointly investigate sabotage, the Russian Foreign Ministry will continue to seek answers from Copenhagen to the questions posed earlier,” says the ministry’s spokeswoman, Maria Zakharova.

She adds that the Danish government was not interested in a probe that would ”shed light on the true perpetrators of the attacks,” writes news outlet Tass.

Zakharova claims that the Danish authorities have failed to reply to numerous Kremlin approaches. Nor have they revealed what has been brought about by the interim investigation, the statement reads.

Earlier last week, Russian President Vladimir Putin called on Denmark to allow for Russian partaking in the probe into last year’s Nord Stream sabotage, wrote Tass and similar domestic news outlet RIA on Tuesday.

On that occasion, Putin maintained having asked Denmark to become part of an international task force to look into the sabotage.

Back then, the Russian ministry of foreign affairs said to Ritzau that Denmark had kept Russia in the loop on the preliminary findings.

Denmark has the right to both investigate and appoint investigators of the explosions which occurred within Denmark’s exclusive economic zone. Two out of a total of four leaks happened within the Danish zone.

It is still unclear what exactly happened when gas pipelines Nord Stream 1 and 2 were blown up on Sept. 26 last year.