The Ukrainian Air Force reported this.
The Russians attacked Ukraine using Shahed-type strike drones and unidentified drones from the Oryol and Bryansk regions.
A total of 73 drones were detected in the skies over Ukraine.
Air forces, anti-aircraft missile units, electronic warfare (EW) systems, and mobile fire groups of the Air Forces and Defense Forces of Ukraine were involved in repelling the attack.
As of 09:00, the air defense system had shot down 50 drones in the Kyiv, Cherkasy, Kirovohrad, Chernihiv, Sumy, Poltava, and Zhytomyr regions.
19 drones have been lost from radar, likely due to active EW countermeasures.
However, combat operations continue — four Russian UAVs are still above Ukraine.