On December 20, 2023, Ukrainian capital mayor Vitali Klitschko reported that a Russian missile attack on Kiev resulted in one death and nine injuries, with four individuals requiring hospitalization. The assault, attributed to Moscow, left hundreds of buildings without heating amid plunging temperatures. Ukrainian air defense claimed to have intercepted all five Iskander-M/KN-23 ballistic missiles, but debris fell across three neighborhoods, damaging heating infrastructure. The Russian military stated the strike was a retaliation for a previous attack on a Russian facility.