SEOUL, Nov 11 (Reuters) - Russia is concerned that the global economy is "unstable and unbalanced" and some countries are weakening their currencies to stimulate growth, a source with the country's delegation to the G20 Summit said on Thursday.
"We are especially worried by attempts by a number of countries to take unilateral decisions to weaken their currencies in order to stimulate growth without agreement with other partners," the source said. (Reporting by Gleb Bryanski; Editing by Alex Richardson)