Russian missile and drone strikes damaged 30 energy and fuel facilities across Ukraine overnight Wednesday, leaving at least 600,000 people without electricity as Moscow intensified attacks on the country's critical infrastructure, Ukrainian officials said.

The attacks primarily targeted Kyiv, the surrounding region and the northeastern city of Kharkiv. Ukrainian President Volodymyr Zelenskyy said 26 power facilities and four oil and gas sites suffered significant damage, warning that outages could spread as authorities assess the destruction.

Ukraine's air force reported that Russia launched 39 missiles and 128 drones during the assault. Ukrainian defenses shot down or electronically disrupted just four missiles and 115 drones, highlighting the difficulty of intercepting large-scale ballistic missile attacks.

The air force said Russian forces launched weapons from several directions at once, overwhelming defenses protecting energy infrastructure. Missile and drone impacts were recorded at 22 locations, while falling debris from intercepted weapons affected eight others.

At least three people were killed in Kyiv, according to local authorities. Emergency crews were dispatched to damaged buildings and infrastructure as repair teams worked to restore power.

Railway infrastructure in five Ukrainian regions was also targeted, extending the assault beyond energy facilities and threatening transport operations across the country.

The strikes came days after U.S. President Donald Trump said Russia and Ukraine had agreed to halt attacks on energy infrastructure. Neither side had formally confirmed such an agreement.

Zelenskyy accused Moscow of deliberately undermining the proposed ceasefire and called for stronger U.S. sanctions against Russia. He also urged Ukraine's allies to provide additional Patriot interceptor missiles to strengthen the country's air defenses.

Russia's Defense Ministry acknowledged carrying out a large-scale attack, saying its forces struck power plants and other infrastructure it claimed supported Ukrainian military operations.

The latest assault raises fresh concerns about Ukraine's ability to maintain electricity and heating supplies as winter approaches. With extensive damage to power generation and distribution facilities, further outages remain possible while emergency repairs continue.