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(CNN) – President Barack Obama placed blame for the violence in Ukraine on Russia Wednesday.
"The violence is encouraged by Russia. The separatists are trained by Russia; they are armed by Russia; they are funded by Russia," he told reporters in Washington.
Calling sanctions against Russia already in place "effective," he said it would face additional costs and consequences for its ongoing incursion.
"Russia is already more isolated than at any time since the end of the Cold War," Obama said.