Russia launched a massive attack on Ukraine overnight into Saturday with hundreds of drones, killing at least one person, part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

The attack damaged critical infrastructure in Sumy, where several thousand families suffered power cuts, Zelenskiy said.

Ukraine: Aftermath of Russia's deadly mass drone attack in Odesa Source: Main Directorate of the State Emergency Service of Ukraine in Odessa region