Russia launched its biggest combined strike on Ukraine's power grid in months, killing at least seven and forcing emergency blackouts in Kyiv and three other regions as freezing temperatures set in.
Russia launched its most punishing assault on Ukraine's power grid in months overnight, striking energy facilities around Kyiv and several other cities in a combined missile and drone attack that killed at least seven people and forced emergency blackouts as freezing temperatures settle over the country.
The barrage marked the opening of a long-anticipated Russian campaign against Ukraine's energy system ahead of winter, a threat Ukrainian officials and Western analysts had warned about for weeks. State grid operator Ukrenergo imposed emergency power cuts in Kyiv and three other regions, and forecasters expected freezing overnight lows in the capital in the days ahead.
The strike is a direct challenge to President Donald Trump's push to de-escalate the war and broker an energy truce, an effort the White House has described as the fastest path to protecting civilians on both sides.
Ukrainian Prime Minister Serhii Koretskyi said the attack was the largest combined assault on the energy system since the end of the last heating season. "Since the summer, there has been practically no day when the enemy has not attacked energy infrastructure," he said. "But such a massive and combined attack has occurred for the first time since the end of the last heating season."
Russia's Defense Ministry said it delivered a "massive strike" using ground-based high-precision weapons and attack drones against a communications center in Kyiv, energy facilities across the country, and port infrastructure in Izmail, in the Odesa region near the Danube.
Officials said at least seven people were killed nationwide and four died in and around the capital. Repair crews worked through the night to restore service, racing to stabilize damaged substations before colder weather tightened its grip on the country.
Moscow had signaled the escalation in late August, when its Defense Ministry said it was preparing a bombardment of Ukraine's energy infrastructure in retaliation for Ukrainian drone strikes on Russian fuel and energy sites. That warning followed the deadliest single attack of the year and a steady Ukrainian campaign against Russian refineries and depots.
Ukrainian President Volodymyr Zelenskyy warned at the United Nations General Assembly last week that Kyiv would make winter painful for Russia if the two sides could not agree to stop hitting energy infrastructure. Ukraine has repeatedly struck Russian oil refineries and fuel depots, drawing complaints from Washington, which argues those attacks are driving up global fuel prices, including record diesel costs in the United States.
The assault on Kyiv also extends a broader pattern of escalating overnight barrages against the capital that have exacted a mounting civilian toll in recent months.
Trump has made ending the war a central goal of his second term and has pressed both sides toward an energy ceasefire, arguing that a halt to strikes on power plants and refineries would spare civilians and steady global fuel markets. He said last month that Russia and Ukraine had agreed to stop hitting energy facilities, though both governments quickly clarified that no formal deal had been finalized.
The White House has kept up pressure on Moscow while also urging Kyiv to stop targeting Russian refineries, warning that those strikes are hurting the world economy. The administration has framed its approach as steady, pragmatic diplomacy aimed at bringing both sides to the table rather than open-ended war -- a posture it argues is already pulling Tehran and others toward negotiations.
So far, the Kremlin has answered with fire rather than diplomacy, underscoring how difficult the administration's push for a durable truce remains.
The energy campaign comes as tensions between Russia and NATO have flared over the Kaliningrad exclave, a Russian territory wedged between Poland and Lithuania. Moscow's embassy in Belgium accused the alliance of escalating the situation, and Russian officials said they were prepared to use their full arsenal if NATO tried to block the region.
NATO condemned the nuclear rhetoric. U.S. Ambassador to NATO Matthew Whitaker said the alliance was prepared for any action Russia might take, describing Moscow's threats as the lashing out of a force that has failed to achieve its aims on the battlefield. "We will defend every inch of NATO territory but at the same time we are not offensive orientated," Whitaker said.
Attention now turns to whether Russia widens its campaign against Ukraine's grid, and how quickly repair crews can restore heat and power before the first hard freeze of the season. Western officials will also watch whether the strikes push Kyiv toward heavier retaliation against Russian energy sites, and whether that derails the Trump administration's bid for an energy truce.
For Ukraine, the test is familiar but more urgent than ever: keeping the lights on, the pipes warm, and the country running through a winter that both sides now expect to be defined by the fight over power.