A concentrated, nine-minute-long Russian drone attack on Ukraine's second-largest city of Kharkiv on Wednesday killed six people and injured 64, including nine children, Ukrainian officials said. The attack followed Russia's two biggest air assaults of the war on Ukraine this week,

Kharkiv has been frequently targeted in recent months as Russia launched repeated large-scale drone and missile attacks on civilian infrastructure.

Russian forces launched a large-scale drone assault across Ukraine overnight Wednesday, killing two people and wounding 60 more, Ukrainian officials said. Eighty-five Shahed-type drones and decoy UAVs targeted the northeastern city of Kharkiv and other areas,