Ukraine's air force said on Friday Russia attacked it with 72 drones overnight though it downed 33 of them while 34 others disappeared from radar without reaching their targets.

Russia's transition to drones directed by fiber-optic cables, which makes jamming ineffective, is giving them an advantage on the battlefield as Kyiv and Moscow gear up for a pivotal stretch of fighting ahead of U.

Russians launched 70 Shahed-type attack drones and imitation drones against Ukraine. Aviation of the Air Force of the Armed Forces of Ukraine was involved in repelling Russian air attacks. Russians launched drones from the directions of the Russian cities of Millerovo,