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(CNN) - Malaysia Airlines Flight 17 was shot down by a surface-to-air missile in a pro-Russian controlled area of eastern Ukraine. Both the U.S. and Ukraine accuse Russia of supping rebels with the state-of-the-art weaponry, but President Barack Obama stopped short of putting the blame on Russian President Vladimir Putin.
"It's very important for us to make sure that we don't get out ahead of the facts, and at this point, in terms of identifying specifically what individual or group of individuals or, you know, personnel ordered the strike," Obama said Friday.
Rebel websites suggested that the bodies discovered at the crash site were "long-dead," speculating the plane could have been MH370, which went missing earlier this year, hidden and then re-used to stage a "provocation."
"It's total nonsense," Ukrainian Ambassador to U.S. Olexander Motsyk said of the wild theory.
"What terrorists did, they shot (a) down civilian airplane. And it is Russia to be held accountable for this crime," Motsyk said in an interview with CNN's "The Lead with Jake Tapper."
"Russia created conflict in the Ukraine, in eastern Ukraine. Russia supplies terrorists with weapons, with heavy weapons, including anti-aircraft weapons, and this is a result of that policy of Russia."
For more of our interview with Ambassador Olexander Motsyk, check out the video above.