Record Russian drone, missile attack kills at least 4, injures 44 across Ukraine, hits government building for first time * Ukraine hits 'strategically important' oil infrastructure in Russia, General Staff confirms * Trump signals support for security guarantees for Ukraine,

KYIV, Sept 7 (Reuters) - Russia launched its largest air attack of the war on Ukraine overnight, setting the main government building on fire in central Kyiv and killing at least four people, including an infant, Ukrainian officials said on Sunday.

Russia attacked Ukraine with 810 drones and decoys – the largest aerial attack on the country since the war began, Ukraine's Air Force said.