Russian airstrikes have killed at least six people in Ukraine and caused power outages in parts of the capital, Kyiv, just days after US President Donald Trump announced an "energy ceasefire" deal in the war, now in its fifth year.
According to Interfax news agency, Russia's Defense Ministry said on Wednesday that its forces had carried out a "large-scale" strike targeting Ukraine's communications and energy infrastructure.
Kyiv Mayor Vitali Klitschko urged residents to remain in shelters. "Energy facilities in Kyiv and the surrounding region came under a large-scale ballistic missile attack. The capital is experiencing power disruptions," he wrote on Telegram.
DTEK, Ukraine's largest private energy provider, said the attack had triggered emergency power cuts in several urban districts of Kyiv.
Ukraine's national emergency response service said a Russian strike on a multi-story building in the capital's Desnianskyi district killed two people, while another attack in the Holosiivskyi district killed one.
Ukraine's military also reported two people killed and six wounded in Russian strikes on the Dnipropetrovsk region. Another person was killed in the Zaporizhzhia region in the country's southeast.
Further Russian missile strikes were recorded in the Kharkiv and Zhytomyr regions, while other attacks hit Sumy and Chernihiv.
Ukrainian President Volodymyr Zelenskyy said the Russian attacks on Kyiv took place without Ukraine receiving any prior warning from its Western allies.
"A Russian ballistic missile attack on Kyiv. Once again, no early warning from our partners," he wrote on Facebook. "This is completely unfair: while they are destroying our infrastructure, Ukraine does not even receive early warning about ballistic missile launches."
The Ukrainian president said the country only detected the missiles as they were approaching Kyiv. He also accused Russia of violating the "energy ceasefire" agreement Trump announced on Sunday.
"A deliberate Russian ballistic missile strike aimed precisely at energy infrastructure — the very infrastructure covered by the ceasefire agreement announced by the US president," he wrote on X. "The attack was entirely deliberate and demonstrative in scale — Russia has never shown such open disrespect for the United States."
For its part, Russia also reported Ukrainian drone attacks overnight. Roman Busargin, governor of Russia's Saratov region, said a Ukrainian UAV attack killed one person in the city of Balakovo.
Busargin said all infrastructure was operating normally. Balakovo is home to a Sberbank data center — the leading Russian lender — a nuclear power plant and a hydroelectric station whose dam stretches across the Volga River, among other facilities.
Moscow Mayor Sergey Sobyanin said air defenses shot down nearly 500 drones heading toward the Russian capital overnight. Russian officials said about 160 others were downed over the Rostov region, while others targeted Moscow.
Russia's military later put the number of Ukrainian UAVs shot down overnight at 902, including 180 near the Russian capital.