Reactions continued to leaks in two Russian pipelines under the Baltic Sea, amid an energy crisis with Moscow;
While European officials considered it a deliberate act of sabotage, the Kremlin called for an investigation into the matter.
European Commission President Ursula von der Leyen said on Tuesday that the gas leaks detected in the Nord Stream pipelines were the result of an "act of sabotage."
"I spoke with (Danish Prime Minister Mette) Frederiksen about the sabotage act that targeted Nord Stream, von der Leyen said - in a tweet on Twitter - "noting that it is important to investigate these events and clarify all their circumstances and causes."
The European official's statement came after the Danish Prime Minister announced on Tuesday evening that the gas leak that occurred in the Nord Stream 1 and 2 pipelines near a Danish island in the Baltic Sea was a "deliberate act" and "not an accident."
"The clear view issued by the authorities is that it was a deliberate act. We are not talking about an accident," Frederiksen said during a press conference.
The Swedish Maritime Administration issued a two-leak alert in the Nord Stream 1 pipeline, a day after another leak was discovered in the nearby Nord Stream 2 pipeline, prompting Denmark to restrict shipping and impose a navigation ban around the pipeline.
A Swedish Maritime Administration spokesman said the two leaks were located to the northeast of the Danish island of Bornholm.
The leak occurred in 3 locations in the "Nord Stream 1 and 2" (Anatolia) lines.
The Swedish authorities indicated that they had detected two explosions under the sea before the gas leak.
The Danish Energy Authority also indicated that the gas leak was caused by a large hole in the Nord Stream line, which caused the leakage of large quantities of gas.
The Energy Authority said that the gas leak from the Nord Stream line will continue for several days and may last a week.
And she warned that there is a serious security risk approaching the area, noting that the gas leak will affect the calm sea water, noting that the sea surface is full of methane gas, which means an increased risk of explosions in the area.
For its part, the German Interior Ministry said that it is taking seriously the damage to the Nord Stream pipeline, adding that it is in close contact with both Denmark and Sweden.
As for the Polish Prime Minister, he considered that the gas leakage from the Nord Stream pipeline is an act of sabotage that may indicate a new stage of escalation of the situation in Ukraine.
The Polish Foreign Ministry also suggested that the leaks that were discovered in the Nord Stream pipelines may be a provocative act on the part of Moscow.
Poland's Deputy Foreign Minister Marcin Przydać said that Russia has always pursued an aggressive policy, stressing that it is not possible to rule out any such provocations by Moscow.
In Norway, the Minister of Energy announced raising the level of security preparedness in all oil installations after the leak in Nord Stream lines.
For its part, the newspaper "Der Spiegel" said that US intelligence had warned the German government of planned attacks on Nord Stream pipelines in the Baltic Sea.
And US Secretary of State Anthony Blinken said that the gas leak from the Nord Stream pipelines would not serve anyone if it was proven to be an attack or sabotage.
He explained that the leak would not have any impact on the energy resilience of the European continent.
On the other hand, the Kremlin expressed its grave concern about the gas leakage in the Nord Stream pipelines.
Kremlin spokesman Dmitry Peskov said that what happened in the Nord Stream pipeline is an unprecedented situation and requires investigation.
Peskov said that no hypothesis about the damage to the two pipelines, including sabotage, could be excluded.