The US has dismissed Russia's assertions regarding Ukraine's involvement in the terrorist attack as "Kremlin propaganda."
According to John Kirby, the strategic communications coordinator of the National Security Council at the White House, the terrorist attack in the Moscow region was unrelated to Ukraine. "This was an attack carried out by ISIS-Khorasan operatives, period," he affirmed during a telephone briefing with reporters.
A White House representative expressed little surprise at the Kremlin's dissemination of misinformation regarding the alleged involvement of Ukrainian services in the terrorist attack.
Furthermore, the US had previously alerted Russian authorities about ISIS's intentions to carry out a terrorist attack.