>U.S. officials said that they had no evidence President Volodymyr Zelensky of Ukraine or his top lieutenants were involved in the operation, or that the perpetrators were acting at the direction of any Ukrainian government officials.
>U.S. officials said there was much they did not know about the perpetrators and their affiliations. The review of newly collected intelligence suggests they were opponents of President Vladimir V. Putin of Russia, but does not specify the members of the group, or who directed or paid for the operation.
>Officials who have reviewed the intelligence said they believed the saboteurs were most likely Ukrainian or Russian nationals, or some combination of the two.