Russian factory manufacturing decoy drones meant to overwhelm Ukrainian defenses as they try to protect against a horrific new weapon, investigation finds.

Russia on Sunday launched a massive drone and missile attack on Ukraine, described by officials as the largest over the past months, targeting energy infrastructure and killing civilians. The attack came as fears are mounting about Moscow’s intentions to devastate Ukraine's power generation capacity ahead of the cold winter.

President Volodymyr Zelenskiy said the German chancellor's phone call with Russia's leader on Friday opened a "Pandora's box" that undermined efforts to isolate Vladimir Putin and end the war in Ukraine with a "fair peace".