Russia has tested a new nuclear-capable, nuclear-powered cruise missile named the Burevestnik, Russia's top general told president Vladimir Putin in remarks released on Sunday.

The missile travelled 14,000 km and was in the air for about 15 hours, General Valery Gerasimov, chief of the general staff of Russia's armed forces

Russia launched a wide drone and missile attack across Ukraine on Wednesday, killing at least six people including two children, Ukrainian officials said, with diplomatic efforts to end the war on pause after the White House said the previous day there were no imminent plans for presidents Donald Trump and Vladimir Putin to meet.

Serbian Foreign Minister Marko Djuric offers to host Ukraine-Russia peace talks, citing Serbia's friendship with all parties involved in the conflict.

U.S. President Donald Trump's administration has prepared additional sanctions it could use to target key areas of Russia's economy if President Vladimir Putin continues to delay ending Moscow's war in Ukraine,