WATCH: New video shows the aftermath of a Ukrainian drone strike on Russian oil facilities.

The attack comes after Russian forces hit residential housing in Kyiv and targets in Ukraine's industrial heartland — the barrage cut power to thousands and killed at least five people, @Jeff_Paul reports.

Earlier this morning, President Trump told the U.N. General Assembly that the U.S. is working closely with Ukrainian and Russian leaders, expressing optimism that the war could end soon.