The Russian rouble has fallen to a new all-time low against the US dollar amid concerns about the effect of sanctions on the country's economy.
The rouble fell about 1% to 38.72 per dollar, the weakest it has been since the currency was restructured in 1998.
Last week, the US and Europe introduced further sanctions against Russia for its actions in Ukraine.
Former finance minister Alexei Kudrin said on Tuesday sanctions would have a material impact on the Russian economy.