The Defense Department has withheld approval for attacks as the White House has sought to entice Moscow to open peace talks.

Ukraine launched a large drone strike Sunday that caused damage at Russia's Kursk Nuclear Power Plant and a major fuel export terminal hundreds of miles away.

Russia launched drones and a missile into Ukraine overnight into Sunday, the air force in Kyiv said, as the country kicked off independence day celebrations marking the anniversary of its 1991 declaration of independence from the Soviet Union.