What We Know About the Overnight Russia-Ukraine Strikes

Overnight strikes between Russia and Ukraine killed at least four people and set fire to one of Russia's largest oil refineries, officials from both countries said Monday, according to Al Jazeera.

The attacks followed a pattern that has defined recent months of the war: Ukraine striking Russian energy and defense-industrial sites, and Russia hitting Ukrainian power infrastructure ahead of winter. The exchange left casualties on both sides and knocked out facilities tied to oil exports and munitions production.

What happened in Odesa overnight?

A Russian attack on the port city of Odesa killed three people, according to the head of the city's military administration, Reuters reported via Al Jazeera. A fourth person was wounded and remained in serious condition. No further details on the type of weapon used were disclosed in the report.

Why is the Kirishi refinery significant?

The Kirishi refinery in Russia's Leningrad region caught fire after a Ukrainian drone attack, Leningrad Governor Aleksandr Drozdenko said in a Telegram post cited by Al Jazeera. One woman was killed by falling drone debris, and an apartment in the town of Kirishi was damaged, Drozdenko said. He added that regional air defenses downed 113 Ukrainian drones during the overnight assault. Kirishi is Russia's second-largest refinery, and the surrounding Leningrad region serves as a major hub for the country's oil and grain exports through the Baltic Sea — making it a recurring target as Kyiv presses an economic pressure campaign against Moscow.

What other Russian facility did Ukraine hit?

Ukraine's military chief of staff said forces also struck the Morozov plant near St. Petersburg, a facility that produces explosives and fuel used in Russian missiles fired at Ukraine, according to the Al Jazeera report.

What did Russia strike in response?

Russian forces hit three power substations in Ukraine and a cargo ship in the Black Sea that Moscow said was supplying arms to Ukrainian forces, Russian state news agencies reported. Al Jazeera said it could not independently verify those Russian claims. Ukraine's Ministry of Energy said Russia has struck the country's energy sector 128 times over the past week as part of what the ministry called a long-term effort to degrade heating and power infrastructure before winter.

What funding mechanism did Zelenskyy announce with the EU?

Ukrainian President Volodymyr Zelenskyy said Monday that Kyiv had agreed with European Commission President Ursula von der Leyen to "activate a special emergency mechanism" that would let EU funding move more quickly toward energy repairs, writing on X that "our teams are already working on this." Zelenskyy said the Kyiv, Dnipro, Sumy and Donetsk regions, along with Kherson, are facing the most acute shortages of power, water and heat. "Right now, many of our cities and communities are facing a very difficult situation with power, water, and heating supplies due to Russian strikes," he said.

Neither Moscow nor Kyiv signaled any shift in strategy following the overnight exchange, and both sides' energy and defense-industrial targets remain likely points of contact as the war moves deeper into its fifth winter.