Moscow considers the destruction of Nord Stream 1 and Nord Stream 2 pipelines last September "an act of international terrorism" and will not allow it to be swept under the rug, the embassy said in a statement. 

The embassy referred to a blog post by journalist Seymour Hersh citing an unidentified source as saying that US Navy divers had destroyed the pipelines with explosives on the orders of President Joe Biden. 

The White House has dismissed the allegations as "utterly false and complete fiction". 

US Department of State spokesman Ned Price said on Wednesday "it is pure disinformation that the United States was behind what transpired" with Nord Stream, provoking the fresh Russian comment. 

Last week, the Kremlin endorsed the blog post by Hersh and said it should be taken seriously.

Kremlin spokesman Dmitry Peskov said it was a "very serious" article that had a "deep analysis."

"It would be unfair not to give it attention," he said. "Unfortunately, the article was not widely disseminated in the Western media, which cannot but cause our surprise."

Peskov said Moscow had information "on the involvement of the Anglo-Saxons in the organisation of this act of sabotage", a claim Russia has made repeatedly but without providing any evidence publicly.

Western countries have blamed the September pipeline explosions on Russia, but Moscow has accused the West of sabotage.

Hersh, an 85-year-old veteran investigative journalist, has in recent years been accused of spreading conspiracy theories.