Biden’s sanctions included the expulsion of 10 Russian diplomats alleged to be involved in spying and a bar on U.S. financial institutions buying rouble-denominated Russian sovereign bonds from June 14.

The price of oil could plunge to as little as $10 a barrel by 2050 if the world succeeds in electrifying the energy market and meeting the Paris Agreement goals, analysis by consultancy Wood Mackenzie shows.

Moldova, linked throughout its history to both Romania and Russia, remains mired in a political impasse pitting "pro-European" President Maia Sandu against her "Russian-friendly" predecessor, Igor Dodon.

Ukraine’s defence minister said Russia’s military buildup could bring more troops into the region and potentially extend to using Crimea for storing nuclear weapons.