By Andrew Osborn and Lucy Papachristou MOSCOW, May 27 (Reuters) - Russia said on Wednesday it had warned Armenia it would suspend or terminate the supply of cheap oil, gas and rough diamonds to the South Caucasus country if Yerevan pressed ahead with its bid to join the European Union.

Major attacks on Kyiv, followed by warnings of more, come as Moscow is stalled on the battlefield and at the negotiating table.

Russia warned U.S. Secretary of State Marco Rubio of imminent strikes and urged Americans to evacuate Ukraine.

Four years after the full-scale invasion of Ukraine, Russia is facing a spring of discontent. Rolling digital blackouts in Russian cities have touched a nerve with ordinary citizens and public pushback against Russian President Vladimir Putin is emerging.

Russia says its foreign minister has delivered a stark warning in a call to U.S. Secretary of State Marco Rubio. Russian Foreign Minister Sergei Lavrov has urged the evacuation of American citizens

May 27 (Reuters) - Russia has passed a law allowing its central bank and other financial institutions to operate defence systems and arm staff to ward off drone attacks without special forces involvement,

Summary and Key Points: Russia’s State Duma passed legislation on May 27 authorizing Sberbank, the central bank, and other financial institutions to install electronic warfare systems and arm employees to shoot down Ukrainian drones threatening their facilities.