REUTERS/Natalia Kolesnikova/Pool
Russia's President Vladimir Putin (R) speaks with then-First Deputy Prime Minister Dmitry Medvedev (L) at a session of the Council for National Projects in Moscow's Kremlin on March 7, 2007.
Medvedev said that Ukraine owes Russia $11 billion because the treaty under which Russia provides Ukrainewith cheap gas in return for the Sevastopol naval base was "subject to denunciation".
In addition, he said that Ukraine owes Russia $3 billion for a recent loan in the form of Russian purchase of Eurobonds, and that around $2 billion is owed to Gazprom, Russia's state-controlled gas concern.
(Reporting by Jason Bush; Editing by Lidia Kelly)