Kyiv Mayor Vitali Klitschko said there were explosions early Saturday in Kyiv's central Solomyanskyi district.
"In Solomyanskyi district, fragments of a rocket hit the upper floors of a 16-story building. There is smoke on the upper floors. One victim was treated at the scene, another was hospitalized. There is no fire in the building. Rescue services are working at the scene," Klitschko wrote on Telegram.
The Kyiv City Military Administration said on Telegram that air sirens had been sounded.