Russia on Saturday launched its largest drone attack against Ukraine’s capital of Kyiv since the start of its invasion, according to local officials.

The Russians targeted military facilities and critical infrastructure in their latest drone attack on Ukraine, Air Force spokesperson Yuriy Ihnat said on national television on Nov. 30.

Ukrainian military officials say Russia has launched its most intense drone attack on Ukraine since the beginning of its full-scale invasion last year.

Ukraine's Armed Forces shot down more than 70 Iranian-made drones headed for Kyiv in Russia's biggest drone attack.

Russian forces were ramping up attacks in eastern Ukraine on Wednesday, Moscow and Kyiv said, as they vie to secure elusive territorial gains before the end of the year.Poland also reiterated support for Kyiv by announcing it was boycotting an international security meeting due Thursday over the invitation of Russian Foreign Minister Sergei Lavrov.