Russia struck six Ukrainian energy sites hours after US President Donald Trump announced an energy ceasefire between both countries, President Volodymyr Zelensky has said.
Trump said on Sunday that the truce was effective immediately.
However, Zelensky said Russia hit gas stations, energy infrastructure and other facilities.
He added that 33 people were injured in the strikes across the country.
Ukraine’s state news agency, Ukrinform, reported blackouts in the city of Izyum after a Russian strike destroyed power grids.
Energy and railway facilities in western Ukraine were also targeted overnight.
On Monday, the state grid operator, Ukrenergo, reported new power cuts in Kharkiv, Donetsk and Zaporizhzhia. It said Russian attacks had damaged equipment.
As a result, electricity rationing has begun in parts of the country to avoid overloading what remains.
Later on Monday, Kyiv’s mayor, Vitali Klitschko, said a drone hit a 25-storey residential building in the Darnytskyi district.
One person died and 11 were injured. Several cars in the courtyard also caught fire.
“We did not attack, while Russia attacked our gas stations, energy infrastructure, and other facilities,” Zelensky told Fox News. “I think it was Putin’s answer to President Trump,” he added.
Russia’s Foreign Minister, Sergei Lavrov, said on Monday that Ukraine does not deserve the respite a ceasefire would bring. Zelensky said the strikes proved Russia was unwilling to accept one.
When Trump first made the announcement, Zelensky said it was news to him. Still, he backed the idea as a major step towards ending the war, if the Americans make sure Russia respects it.
British Prime Minister Andy Burnham said the UK strongly supports Trump’s call for a sustained energy ceasefire. France, Canada and the EU also voiced support.
However, European reaction was not uniform. EU foreign policy chief Kaja Kallas said the bloc would welcome a ceasefire “when it holds”.
She added that Europe had not yet seen Russia stick to it. Estonia’s foreign minister said the truce was “not working”.
Both sides have stepped up their strikes ahead of winter. Moscow says the sites it hits are legitimate targets because they support Ukraine’s military.
Zelensky says Ukrainian attacks inside Russia aim to cut the country’s ability to fund the war.
According to analysis by BBC Verify, there have been 273 strikes on Russian-controlled oil and gas facilities this year. That is more than double the 124 recorded in the same period of 2025. Data from the conflict monitor Acled shows 2.4 times as many Russian attacks on Ukraine’s energy network.
Meanwhile, Trump has urged Ukraine to stop hitting Russian oil sites so Russia can deliver the diesel in their recent deal. Zelensky called that deal a gift to President Vladimir Putin.
