U.S. Biden voices support for Ukraine, denounces Russia's Putin

Ukraine's President Petro Poroshenko (R) listens to U.S. Vice President Joe Biden during a news conference in Kiev, November 21, 2014. REUTERS/Valentyn Ogirenko

KIEV (Reuters) - U.S. Vice President Joe Biden on Friday condemned Russia's behaviour in Ukraine as "unacceptable" and said Moscow should abide by a September peace deal and pull its military forces out of the country.

Addressing himself rhetorically to Russian leader Vladimir Putin after holding talks with Ukrainian President Petro Poroshenko, Biden said: "Do what you agreed to do, Mr. Putin."