Zaporizhzhia regional governor Ivan Fedorov, writing on the Telegram messaging app, said the city had been struck more than 10 times, killing two people and injuring nine.
The injured included a nine-month-old infant and a woman in serious condition.
Pictures posted online showed rescue teams sifting through rubble and apartment blocks and homes with windows and facades badly damaged. Fires burned amid piles of rubble.
In Sumy region, on Ukraine's northern border with Russia, prosecutors said Russian forces dropped at least six guided bombs on the village of Krasnopillia, killing two people and injuring at least two more.
In eastern Donetsk region, the focal point of Russia's steady westward advance, prosecutors said Russian forces had dropped three bombs on the town of Kostiantynivka, close to the front lines, killing one person.
In Russia's southern city of Rostov-on-Don, acting regional governor Yuri Slyusar said a Ukrainian drone struck an apartment building on the 17th floor, injuring two people. Air defences destroyed a number of drones, he wrote on Telegram.
In the southern Russian region of Voronezh, regional governor Alexander Gusev said more than 10 Ukrainian drones were destroyed. No damage or casualties were reported.
Reuters could not independently verify reports from either side.
The Kremlin said this week that Russian President Vladimir Putin had agreed in a call with his US counterpart Donald Trump to observe a 30-day ceasefire on energy targets.
That accord fell short of a wider agreement that the US had sought, and which was accepted by Ukraine, for a blanket 30-day ceasefire. Talks on pursuing a ceasefire are scheduled for next week in Saudi Arabia and, separately, with Russian and Ukrainian officials.
25°C