This was announced by Mykhailo Podolyak, Advisor to the Head of the Presidential Office.
"Although I like to collect interesting conspiracy theories about the Ukrainian government, I must admit: Ukraine has nothing to do with the incident in the Baltic Sea and has no information about "pro-Ukrainian subversive groups". What happened to the Nord Stream pipelines? "They drowned," as they say in the Russian Federation itself..." Podolyak commented.
New US intelligence data indicates that the attack on the Nord Stream gas pipelines was carried out by a pro-Ukrainian group that is not directly affiliated with the government or intelligence services.