The Russian ruble fell to an 8-month low against the dollar on Thursday.
The Russian currency is suffering under the weight of expectations that sanctions targeting Russian oil and gas will limit export revenues.
The ruble fell 0.9% against the dollar by 07:17 GMT to 72.83, its weakest level since last April 27. It also fell 0.7% to 76.93 against the euro, and by 0.6% against the yuan to 10.31.
The ruble lost key support for the end-of-month tax period when exporters usually convert their foreign exchange earnings into rubles to pay domestic obligations.
The combination of the impact of the recovery in imports and the decline in exports intensified the pressure.
This week, Russian President Vladimir Putin announced Russia's long-awaited response to the West's imposition of a ceiling on oil prices, and signed a decree banning the supply of crude oil and oil products starting from February 1 for a period of 5 months to countries that adhere to the ceiling.
The ruble has lost about 15% of its value against the dollar since the price ceiling came into effect on December 5.
The Russian economy is preparing to enter 2023 and is in an unstable situation.
And economic data for last November - published yesterday, Wednesday - showed indications that the labor shortage associated with the partial mobilization order issued by Putin at the end of September is undermining growth prospects.