The strikes appear to have been the most intense since President Trump announced a new plan last week to send weapons to Ukraine.

A Russian factory, described by its director as the world's biggest maker of strike drones, has been shown on the Russian army's TV channel with teenagers helping make kamikaze drones to attack Ukraine.

Military has been filmed using the vehicles as missile and drone strikes have increased by 605% over the past six months

Russian aviation faced big delays due to the threat posed by Ukrainian drones, while Moscow's attacks on Ukraine killed at least one person.

Dozens of Russian drones are being launched from US-manufactured Ram trucks to wreak havoc on Ukrainian civilians, video footage suggest. Russian missile and drone strikes against Ukraine have risen by 605% in the last six months, according to NBC, with more than 23,000 launched.

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.

Russian video reveals mass production of Iranian-designed Shahed drones, marking Moscow's deepening alliance with Tehran.