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Employees work in an office in Moscow on December 15, 2014. The Russian ruble tumbled 9.5 percent Monday to new record lows as falling crude prices pulled the rug out from under the currency of the oil exporting nation, with analysts saying the Kremlin needs to act to stop the free fall. The plunge in the ruble came as the central bank warned the low oil price could trigger a contraction of nearly 5 percent next year and tensions surged with the United States over Ukraine. AFP PHOTO/KIRILL KUDRYAVTSEV        (Photo credit should read KIRILL KUDRYAVTSEV/AFP/Getty Images)
Employees work in an office in Moscow on December 15, 2014. The Russian ruble tumbled 9.5 percent Monday to new record lows as falling crude prices pulled the rug out from under the currency of the oil exporting nation, with analysts saying the Kremlin needs to act to stop the free fall. The plunge in the ruble came as the central bank warned the low oil price could trigger a contraction of nearly 5 percent next year and tensions surged with the United States over Ukraine. AFP PHOTO/KIRILL KUDRYAVTSEV        (Photo credit should read KIRILL KUDRYAVTSEV/AFP/Getty Images)

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