A ballistic missile attack is underway in Kyiv, with the Ukrainian military confirming the incident early on Sunday.
The capital's mayor, Vitali Klitschko, urged residents to remain in shelters, as air defence forces operate in the city.
Russian strikes in Ukraine's Dnipropetrovsk and Sumy regions killed two people a day earlier.
Ukraine has retaliated with attacks on Russian targets, including Volgograd, Belgorod, and Horlivka, resulting in three deaths.
Russia has launched near-daily strikes on Ukraine since its full-scale invasion in February 2022.
