The story is originally in the Washington Post but they have a paywall, so here it is outside the paywall:

"A Ukrainian military officer involved with the country’s intelligence services allegedly played a leading role in the bombing of the Nord Stream pipelines in 2022, sources familiar with the matter told The Washington Post.

Roman Chervinsky, a 48-year-old colonel who served in Ukrainian Special Forces, was the “coordinator” of the operation to blow up the pipeline, according to the Post. Chervinsky’s role allegedly involved managing logistics for the team that rented a sailboat and used diving equipment to plant explosives on the pipelines."

Chervinsky allegedly took orders from senior Ukrainian officials who reported to the Ukrainian Gen. Valery Zaluzhny, sources familiar with the matter told the Post. Chervinsky denied being involved in sabotaging the pipeline."


Still no further word about whether the US was also involved.