Kremlin spokesman Dmitry Peskov told a daily conference call with reporters that the incident needed to be investigated and the timings for repair of the damaged pipelines were not clear.
Europe has been investigating what Germany, Denmark and Sweden said were attacks which had caused major leaks into the Baltic Sea from two Russian gas pipelines at the centre of an energy standoff.
Asked about claims Russia might somehow be behind the possible attack, Peskov said: "That's quite predictable and also predictably stupid."
"This is a big problem for us because, firstly, both lines of Nord Stream 2 are filled with gas - the entire system is ready to pump gas and the gas is very expensive... Now the gas is flying off into the air."
"Before making any claims, we should wait for investigation into these ruptures, whether there was an explosion or not," Peskov said. Information on the incident could be expected from Denmark and Sweden, he said.
Nord Stream AG, the operator of the network, said on Tuesday that three of four offshore lines of the Nord Stream gas pipeline system sustained "unprecedented" damage in one day. All Nord Stream's pipeline had not delivered gas by the time of the incident.
Nord Stream 1 has reported a significant pressure drop caused by the gas leak on both lines of the gas pipeline, while Nord Stream 2 said that a sharp pressure drop in line A was registered on Monday.
(Reporting by Dmitry Antonov; editing by Guy Faulconbridge)