Ukrainian officials said air defenses shot down 20 Iranian-made drones fired by Russia mostly at the Kyiv region early Thursday morning, but wreckage fell on four districts of the capital, wounding two people and destroying several homes.

The latest barrage by the Kremlin’s forces began shortly after midnight, and explosions shook different parts of the city. Two people were hospitalized with shrapnel wounds, authorities said. In the capital, rescuers extinguished a fire in a 16-story building, as well as in a non-residential building, the Interior Ministry said. Debris also damaged the frontage of a 25-story apartment building, it said.