Filippo said this in an interview with RIA Novosti.
"Even before the theory put forward (by journalist Seymour. - RT) Hersham, who is a very authoritative journalist, it was obvious that the Americans were behind the undermining, "the politician emphasized.
Filippo recalled that Washington for many years struggled with these gas pipelines, long before the Ukrainian conflict.
He also pointed to US President Joe Biden's public statement that Washington is capable of doing everything to destroy Nord Streams.
Earlier, the winner of the Pulitzer Prize, the author of the investigation into the explosion of gas pipelines Seymour Hersh said that the United States has always been the only suspect in this case.