A concentrated, nine-minute-long Russian drone attack on Ukraine's second largest city of Kharkiv in the middle of the night killed three people and injured 64, including nine children, Ukrainian officials said on Wednesday.

Russian forces launched a new drone assault across Ukraine overnight on Wednesday, killing three people and wounding 64 others, Ukrainian officials said. One of the hardest-hit areas was the city of Kharkiv in northeastern Ukraine,

The Ukrainian military said that it had struck the Rezonit electronics factory in Russia’s Moscow region overnight.