The Obama administration has imposed financial restrictions on 34 additional people and entities for helping Russian and Ukrainian companies evade US penalties and other infractions, prompting threats of retaliation from the Kremlin.
The Guardian: US imposes financial restrictions to reinforce Ukraine sanctions
U.S. Vice President Joe Biden (C) gestures next to Ukraine president Petro Poroshenko (R) after addressing deputies of the Ukrainian Parliament in Kyiv on Dec. 8, 2015.