Russia attacked Ukraine with 113 drones overnight, the Ukrainian Air Force said on Saturday, adding that it downed 57 of them while 56 others failed to reach their targets -- usually as a result of being jammed by electronic warfare systems.

The air force said Russia also fired one S-400 missile at central Ukraine but that there was no damage from it.

Moscow launches near-daily attacks with dozens of drones at Ukraine to exhaust its air defenses.