Russia has launched the largest attack on Ukraine's energy infrastructure since spring, focusing on Kyiv and surrounding areas, the Ukrainian Prime Minister Serhiy Koretskyi said.

At least six people were killed and 33 others injured across the country in the overnight attacks, including a child in the Kyiv region, local authorities reported.

The strike disrupted power supplies, with Ukraine's biggest private energy firm, DTEK, noting that power to 8,000 homes had been restored after a “difficult night” for the capital.

The Russian defence ministry identified the Trypilska power station, Kyiv’s largest electricity supplier, as one of its targets, though Ukrainian officials have not confirmed the damage.

Koretskyi warned that since summer there has been no day without attacks on energy infrastructure, but he stressed that the recent mass assault was unprecedented since the last heating season.

Shelling involved 11 regions, targeting residential buildings, social infrastructure, civilian enterprises and railways. President Volodymyr Zelensky reported strikes in the Zhytomyr, Mykolaiv, Kirovohrad and Rivne regions.

The Ukraine energy ministry said that some households in Kyiv, Dnipropetrovsk, Donetsk, Sumy, Kyiv and Kharkiv remained without power, while grid operator Ukrenegro advised residents to avoid using heavy electrical appliances between 10:00 and 16:00 local time due to lower supply levels.

In Kyiv, residents woke to thick, acrid smoke and a continuous air‑raid alert. City officials urged districts to keep windows closed until the smoke cleared. The death toll included a child found under rubble in a house and a utility worker killed at a warehouse, according to Kyiv Mayor Vitaly Klischko.

Two people were killed in the Sumy region and one in Mykolaiv from a drone strike. Russia, which began a full‑scale invasion of Ukraine in 2022 and controls about 20% of the country’s territory, continues to pressure the Ukrainian grid.

Firefighter with hose showing damage site in Kyiv