In one of the most dramatic escalations of the war, Ukraine launched a massive wave of long-range drone strikes against Russian oil refineries, energy facilities and military targets, while Moscow responded with a large-scale missile barrage on Kyiv that killed at least four civilians. The coordinated attacks, which stretched from the Black Sea coast to Siberia, mark a new phase in Ukraine's strategy to carry the fight deep into Russian territory.

Ukraine's Deep-Strike Campaign Against Russian Oil

Ukrainian drones struck at least six oil refineries across Russia overnight, including the Ilsky and Afipsky refineries in the southern Krasnodar region, and the Ryazan, Moscow, Saratov and Samara facilities. A Ukrainian source said drones also hit the Tyumen refinery in western Siberia, nearly 1,900 kilometers from the Ukrainian border, in what some analysts described as one of the deepest strikes of the war. In a separate attack, the Yaroslavl refinery was hit for the second time in a week.

• Ilsky and Afipsky refineries (Krasnodar region) — fire and five injuries from drone debris.
• Ryazan and Moscow refineries — operations halted after strikes.
• Saratov and Samara (Rosneft) refineries — confirmed hits.
• Tyumen refinery in Siberia — over 1,900 km from the frontline.
• Yaroslavl refinery — second strike in seven days.

The blows were significant enough to halt operations at some of Russia's largest refineries. Kyiv Post reported that the Moscow and Ryazan refineries shut down processing after the strikes, while the 3,000-km strike on Russia's largest refinery raised fears of fuel shortages. Ukrainian military sources claim that since the beginning of May, Ukrainian drones have hit 10 Russian refineries, knocking out six.

Ukrainian President Volodymyr Zelensky addressed the strikes on Telegram, saying, "Moscow must feel the war." He called the attack on the Moscow oil refinery a "justified response" to Russia's ongoing missile terror against Ukrainian cities.

"Moscow must feel the war," Zelensky said, framing the strikes as a direct response to Russian aggression.

Ukraine's strategy, according to the Financial Times, is to adapt its strikes to hit critical components of Russian refineries, maximizing disruption while conserving limited resources. By targeting primary processing units and catalytic cracking equipment, Kyiv aims to cripple Russia's fuel supply and reduce the Kremlin's ability to finance the war.

Beyond Oil: Retail, Military and Infrastructure Targets

The drone barrage was not limited to refineries. In the Moscow region, warehouses belonging to Wildberries, Russia's largest online retailer, were hit, causing massive fires and killing at least eight people, according to Russian emergency officials. This is the second time Ukraine has targeted Wildberries in recent weeks, following a similar attack in April. Ukrainian officials described the strikes as part of an effort to disrupt Russia's economy and logistics.

Military targets also came under fire. Ukrainian drones struck the Voronezh airfield, an aircraft plant in Taganrog, and destroyed two Russian Tu-142 maritime patrol aircraft and an Iskander-M missile system, according to Kyiv Post. In Crimea, a Ukrainian strike cut power to large areas, and oil depots in Tver and Stavropol regions were set ablaze.

Kyiv denied striking the Kremlin-occupied Zaporizhzhia nuclear plant, saying its attacks were focused solely on military and energy infrastructure. The denial came after Russian officials claimed that Ukrainian drones had attempted to hit the plant.

In the Black Sea, Ukraine targeted vessels associated with Russia's "shadow fleet" of aging tankers used to evade international sanctions. The attacks on tankers and port infrastructure caused wheat prices to jump on global markets, as traders worried about disruptions to grain exports from the region.

Russia's Retaliation: Missiles Rain on Kyiv

In response, Russia launched a massive missile and drone attack on Kyiv and its surrounding region. Ukrainian officials said air defenses intercepted many of the incoming weapons, but debris and falling munitions killed at least four people and wounded several others. In one incident, a high-rise residential building was damaged, and witnesses described scenes of panic as explosions echoed through the capital.

"The air defenses fell short," one local resident told reporters. Russia's military claimed it had struck Ukrainian energy sites and airfields, but the civilian casualties sparked renewed international condemnation.

Russian President Vladimir Putin has remained silent on the drone strikes, which have become an almost nightly occurrence. Drones struck Moscow for the second day running, underlining the vulnerability of Russian air defense even in the heart of the country.

Political and Diplomatic Fallout

The strikes came just hours after Zelensky met with former U.S. President Donald Trump, adding a political dimension to the military escalation. Zelensky has been pressing Western allies for more long-range weapons and permission to use them against targets inside Russia. The drone campaign demonstrates Ukraine's growing capability to strike deep into Russian territory without Western-supplied missiles, using its own domestically produced UAVs.

NATO Secretary General Mark Rutte, visiting Kyiv, said that Russia is "increasingly desperate" and that the attacks on Russian soil are a natural consequence of Moscow's invasion. "Ukraine has the right to defend itself, and that includes striking legitimate military targets in Russia," Rutte said.

"Russia is increasingly desperate," NATO Secretary General Mark Rutte said during a visit to Kyiv.

Economic and Strategic Implications

The economic impact on Russia is becoming increasingly apparent. With several major refineries offline or operating at reduced capacity, Russia faces the prospect of fuel shortages domestically and reduced revenue from fuel exports. The targeting of the shadow fleet could further complicate Russia's ability to sell oil on global markets, even as India and China continue to purchase discounted crude.

For Ukraine, the deep-strike campaign is a double-edged sword. While it demonstrates resilience and capability, it also risks provoking a harsher Russian response against Ukrainian cities. The White House and European allies have so far reacted with cautious support, urging Ukraine to adhere to international humanitarian law.

The events of the past 24 hours represent a tipping point in the conflict. As Ukraine pushes the war deeper into Russian territory, the conflict is entering a more dangerous and uncertain phase. The world is watching to see whether Putin will retaliate with even more devastating attacks on Ukrainian cities, or whether the pressure will force a recalculation in the Kremlin.

Reporting contributed by Bloomberg, Reuters, BBC, Kyiv Post, Financial Times, and other sources.