Russian forces have launched a large-scale drone assault across Ukraine, where officials said three people were killed and 64 others wounded.

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,

Russia has relocated dozens of its strategic bombers to more remote airbases across the country in the wake of this month's sweeping Ukrainian drone assault on Moscow's military aircraft, satellite imagery suggests.