Ukraine's Black Sea port of Odessa, killing one person, with others possibly still trapped under rubble, the Ukrainian military said on Friday.
The military's Southern Forces, in a post on the Telegram messaging app, said it had intercepted nine drones, but one of them struck an area near the port and triggered a fire.
Firefighters recovered one body and said other residents might still be under the rubble as emergency teams worked to bring the blaze under control. A female security guard was rescued unharmed from a building, the post said.
The military said missiles were also used in the attack, but they had failed to hit any targets.
Pictures posted by the military show heavy damage to buildings in the area and rescue teams making their way through debris.
In the central city of Dnipro, a Russian drone hit a multi-storey apartment building, injuring four people, the regional governor said.
Serhiy Lysak, governor of Dnipropetrovsk region, wrote on Telegram that search operations were proceeding through the night and other residents might still be under rubble.
Reuters was unable to verify independently the accounts.
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