Washington (CNN) -- Russia is preparing the transfer of more powerful weaponry into Ukraine, and it could happen at any time, a Pentagon spokesman said Friday, citing the latest U.S. intelligence. The transfer could be "imminent," the spokesman, Col. Steve Warren, told reporters. It's believed the weaponry will be driven into Ukraine "potentially today," he said, but it is not clear if Russian troops will be involved. State Department spokeswoman Marie Harf also warned of the possibility Thursday, telling reporters, "We have new evidence that the Russians intend to deliver heavier and more powerful multiple rocket launchers to the separatist forces in Ukraine and have evidence that Russia is firing artillery from within Russia to attack Ukrainian military positions."
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Imagery shows burn marks on the Russian side of the border, indicating artillery was fired
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The EU steps up pressure against Russia for fomenting the Ukraine crisis
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The Pentagon says the weaponry transfer could be "imminent"
Everything @placeholder is doing, Warren said, is "unquestionably an escalation."
The move brings the total number of @placeholder sanctions in the Ukraine crisis to 87, and the number of entities to 20.