US Vice President Kamala Harris and the White House National Security Council said there is no evidence that Ukraine is behind the attack at a concert hall near Moscow.
“There is no, whatsoever, any evidence — and in fact, what we know to be the case is that ISIS-K is actually, by all accounts, responsible for what happened,” Harris said in an interview with ABC News. “What has happened is an act of terrorism and the number of people who've been killed is obviously a tragedy and we should all send our condolences to those families."
National Security Council spokesperson Adrienne Watson said:
"In early March, the US government shared information with Russia about a planned terrorist attack in Moscow. We also issued a public advisory to Americans in Russia on March 7. ISIS bears sole responsibility for this attack. There was no Ukrainian involvement whatsoever."