Russian Foreign Minister Sergei Lavrov complained on Tuesday that Moscow has not yet received a proper explanation about the Nord Stream turbine status maintained by Siemens in Canada.

"The story of the Siemens turbine is getting even bigger. It was for routine maintenance in Canada, but it did not want to return the turbine. Then Siemens managed to return it with the German government's mediation. But no one can clearly explain to us with documents what the current status is, first of all, of this turbine and other turbines that have to undergo maintenance in Canada," Lavrov said at a press conference in the Ugandan city of Entebbe, reports Interfax.

Earlier, Kremlin spokesman Dmitry Peskov said the turbine had not yet arrived, but Moscow hoped it would be installed "sooner rather than later."

Gazprom said on Monday that it had received the turbine documentation but had "remaining questions" about it.

Earlier, the media reported that the Nord Stream-1 turbine was stuck in transit to Germany because Russia had not given the go-ahead to transport it back. The Kremlin denied such media reports.

On Monday, Gazprom said that gas flows to Europe would cut daily gas production to 20%, halving the current supply level due to the maintenance of another turbine.