President Donald Trump imposed sanctions on Russia's largest oil companies Rosneft and Lukoil while canceling his planned summit with Russian President Vladimir Putin.

U.S. President Donald Trump has done a turnaround on sanctions against Russia, taking aim at Russia's two biggest oil companies and the billions of dollars they reap for Moscow's war against Ukraine.

Senators are hoping to seize the momentum as President Trump goes on the offensive against Russian President Vladimir Putin, though Republicans remain cautious about getting ahead of the commander in chief.

Russian jets violated NATO airspace over Lithuania for 18 seconds during suspected refueling exercise. Nation's president calls it a breach of international law amid tensions.

The European Union has imposed more economic sanctions on Russia. The new penalties announced on Thursday add to measures by U.S.

U.S. President Donald Trump hit Russia's two biggest oil companies with sanctions in a sharp policy shift on Moscow's war in Ukraine, prompting global oil prices to rise by 5% on Thursday and India to consider cutting Russian imports.

Russia launched a large-scale air attack on Ukraine early Wednesday, causing power outages across most of the country, setting homes ablaze and killing at least six people, including a six-month-old baby,

President Donald Trump’s sanctions against two of Russia’s largest oil companies come as the European Union passes its 19th package targeting the energy sector.

By Andrew Osborn, Jeff Mason and Timothy Gardner MOSCOW (Reuters) -Russian President Vladimir Putin remained defiant on Thursday after U.S. President Donald Trump hit Russia's two biggest oil companies with sanctions to pressure the Kremlin leader to end the war in Ukraine,