Russia's Lukoil said it had reached preliminary agreement to sell its network of filling stations in Ukraine, days after radical nationalists there tried to extort fuel from the company.
Britain will formally open an inquiry into the radioactive poisoning of Russian former spy Alexander Litvinenko in a case that threatens to increase tensions with Moscow amid the crisis in Ukraine.
The United States and Europe targeted Russia's key financial, arms and energy sectors Tuesday with tough new sanctions in response to Moscow's intervention in the Ukraine crisis.