In an interview with one of his nation's largest publications, Radoslaw Sikorski suggested that the US knew the Nord Stream pipeline blast was imminent but failed to take action to prevent the disaster.
"If you believe the press," he told Rzeczpospolita, "it was done by someone who had a vested interest in it. The American side had advance knowledge of this and did not prevent it."
When reminded that media outlets in the US and Germany have suggested it could be Ukraine, Sikorski reiterated that he believed the attack was carried out by someone "who had a vested interest."
Sikorski garnered worldwide attention over his comments in the immediate aftermath of the September 26, 2022 attack. The following day, he replied to a tweet about the blast with his official government account, saying, "Thank you, USA."
Initial reports from major media outlets pushed the idea that Russia was to blame.
In February of last year, journalist Seymour Hersh published a report claiming the attack was a deliberate act of sabotage orchestrated by the US with the direct approval of Joe Biden.
White House National Security Council spokesperson Adrienne Watson called the allegations "utterly false and complete fiction."During a press conference just months before the attack, Biden said that, "if Russia invades [Ukraine] … there will be no longer a Nord Stream 2. We will bring an end to it."
Secretary of State Antony Blinken and Under Secretary of State Victoria Nuland are also on record noting that the US had an interest in preventing Nord Stream 2 from opening in 2023.
A number of investigations were launched into the disaster, but while some have ended, Germany has continued looking into what really happened.