Russian strikes on Ukrainian power infrastructure overnight left hundreds of thousands of households without electricity on Sunday as a local ceasefire in the Kherson region reached its final day.

President Volodymyr Zelenskyy reported that Russia targeted energy facilities in four regions, including Dnipro, Vinnytsia, Zhytomyr, and Khmelnytskyi. Substations, transformers, and power lines were hit, with the intensity of the attacks described as extremely high. Hundreds of thousands of families remained without power as repair crews worked to restore service.

The strikes occurred even as the six-day local ceasefire around the Russian-controlled town of Oleshky held through its final hours. The limited truce, focused on the Kherson region, had allowed some humanitarian efforts but saw no extension announced by either side. Fighting continued elsewhere along the front lines, with both countries conducting long-range attacks.

Ukrainian officials noted that Russia has continued its campaign against energy targets despite earlier proposals for broader pauses on such strikes. In response, Ukrainian drones struck an industrial facility in Russia's Nizhny Novgorod region, causing significant damage according to local authorities.

These developments come amid ongoing winter preparations for Ukraine's power grid, which has faced repeated assaults. The latest outages add to challenges for civilians already dealing with prior disruptions.

Russian authorities have accused Ukraine of similar attacks on energy sites inside Russia, contributing to tensions over fuel markets and infrastructure. Ukraine has expressed support for mutual halts on energy strikes but maintains that Moscow has not agreed to reciprocal measures.