Ukraine said it had attacked a Russian oil refinery in a region near Moscow, a day after deadly Russian attacks on its capital Kyiv.
The Ukrainian army said on social media it had hit a refinery in the Ryazan region near Moscow as "part of efforts to reduce the enemy's ability to launch missile and bomb strikes".
Ukraine has regularly staged missile and drone attacks inside Russia throughout the Kremlin's invasion since 2022.
Ryazan governor Pavel Malkov said Russian air defences shot down 25 Ukrainian drones over the region during the night.
"Falling debris caused a fire on the premises of one enterprise," Mr Malkov said on Telegram but there had been no casualties.
The attack came a day after Russia struck apartment blocks across Ukraine's capital Kyiv that left seven dead, according to the latest toll.
Read more: A turbulent week for Ukraine's energy sector
"It has been reported that an elderly woman who was wounded during the shelling on November 14 died in hospital this morning," Tymur Tkachenko of Kyiv's city administration said on social media.
Other victims included a couple in their 70s and a 62-year-old.
Meanwhile, Mr Zelensky has announced an overhaul of state-owned energy companies, after a corruption scandal at the heart of a sector battered by Russian attacks sparked a public outcry.
Anti-graft investigators said around $100 million (€86m) had been embezzled from the energy sector, causing outrage in a country where Russian attacks have resulted in devastating power outages.
Mr Zelensky ordered two ministers to resign over the corruption scheme and sanctioned a former business partner who was named as its mastermind.
"We are beginning the overhaul of key state-owned enterprises in the energy sector," Mr Zelensky said on X.
"Alongside a full audit of their financial activities, the management of these companies is to be renewed."
He called for a new supervisory board at Energoatom - the state nuclear company at the heart of the scandal - "within a week" that would enable a "complete overhaul of the company's management".
He also called for the quick appointment of a new head of hydropower generating company Ukrhydroenergo and other reforms for oil and gas giant Naftogaz and the main gas operator.
Mr Zelensky has previously said he is committed to fully cooperate with the anti-corruption investigation.
"I have also instructed government officials to maintain constant and meaningful communication with law enforcement and anti-corruption bodies," he said.
"The full transparency and integrity in the energy sector remain an absolute priority," he added.
The scandal prompted some of Ukraine's European allies to urge Zelensky's government to do more to battle corruption.
Officials in the central Dnipropetrovsk region said a Russian drone wounded five people, one seriously, in the city of Nikopol.
Nikopol lies on the Dnipro River that forms the frontline with Russian forces.
On the opposite occupied bank of the river, Moscow-installed official Yevgeny Balitsky said a Ukrainian drone had hit power lines, causing outages for some 44,000 subscribers.
Russia's Defence Ministry said that its forces had captured the village of Yablukove in Ukraine's Zaporizhzhia region, Russian news agencies reported.
Reuters could not independently verify the battlefield reports
The situation at the Russian-held Zaporizhzhia nuclear power plant in Ukraine remains stable after one external power line had been switched off, the RIA news agency reported citing the plant's representative.
The Dneprovskaya power line supplying electricity to the plant was switched off as a result of the automatic protection being triggered, the plant had said yesterday.
