Ukrainian drones forced Rosneft's Kuybyshevsky oil refinery in Samara Oblast, Russia, to halt oil processing on 10 June, Reuters reported. The strike puts all three plants in the Rosneft Samara refining hub out of full operation at the same time.

Reuters confirms processing halt at both primary units

Reuters cited two industry sources to confirm that processing stopped at both AVT-4 and AVT-5 after the strike. Each unit has a nominal processing capacity of about 73,000 barrels of crude oil (10,000 metric tons) per day. The hits caused damage and subsequent fires at both. 

Samara Oblast Governor Vyacheslav Fedorishchev claimed a massive overnight drone attack injured three people and caused "damage to several industrial facilities." 

An earlier report on 10 June described fires at the Kuybyshevsky refinery after the strike.

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Fire reported at Kuibyshev oil refinery in Russia’s Samara after drone strike

Plant size and output

Kuybyshevsky's 2024 crude oil throughput was 4.7 million tons, equal to 94,400 barrels a day, Reuters reported. That year's output included 0.8 million tons of gasoline, 1.4 million tons of diesel, and 1.3 million tons of fuel oil. Nominal capacity stands at 7 million tons per year. The plant is one of the largest oil refining facilities in the Volga region. It also supplies fuel for the Russian army.

The Kuybyshevsky plant was also previously hit in January 2026, August 2025, and in March 2024. The earlier strikes damaged equipment and forced production cycles to stop.

Same night: Cheboksary defense plant struck

The same night, Ukrainian forces also struck the VNIIR-Progress plant in Cheboksary, Chuvashia, which was previously hit on 5 May. The factory makes "Kometa" antennas that protect Russian drones from electronic warfare. It also makes satellite receivers for GLONASS, GPS, and Galileo systems. Ukraine's General Staff said such modules are used in Shahed-type drones, Iskander and Kalibr missiles, and aerial bombs.

Meanwhile, today saw a strike on the Afipsky refinery in Krasnodar Krai. 

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Afipsky oil refinery burns again as Ukrainian drones return to Krasnodar Krai

By May 2026, Ukrainian drones had taken six of ten Russian refineries hit during that month offline. Russian media counted 24 of Russia's 33 largest refineries struck since 2022. Only the Omsk and Angarsk plants east of the Urals remain untouched so far.

Ukrainian drones struck four vehicular bridges at Crimea's northwestern entrance overnight on 11 June 2026, quisling official Vladimir Saldo claimed. The strikes are part of Ukraine's most recent mid-range strike push—now at its fourth day—reaching every road corridor between Crimea and mainland Ukraine. The same night, drone attacks also rolled across Sevastopol, Bakhchysarai, Saky, and other Crimean sites.

Four bridges damaged at the Armiansk isthmus

Saldo, the Russian-installed head of occupied Kherson Oblast, named the four targets on his Telegram. They include the automobile bridge in the Perekop-Armiansk area and a bridge near Stavky, Kherson Oblast. Two more bridges near Myrne and Preobrazhenka span the North Crimean Canal. Saldo stated all four spans sustained damage.

Three Crimean northern choke points hit in four days

Ukraine struck the Chonhar bridge on 7 and 9 June, closing Russia's main road link to occupied Crimea, yet the Russians reportedly installed a pontoon bridge next to the severely damaged crossing. On 10 June, Ukrainian drones hit the bridge from Henichesk to Arabat Spit. With both routes fully or partially shut, Russia had rerouted traffic through Armiansk and Perekop — the very corridor struck overnight. DeepState analysts noted that Ukrainian strikes on the bridges are an important part of the blockade of occupied southern Ukraine.

Not only an entrance, but also targets across the peninsula

Russia's occupation governor, Mikhail Razvozhayev, claimed 32 drones were shot down over Sevastopol between 22:00 and midnight. He claimed the drones fell near Sevastopol Bay, Cape Fiolent, and Balaklava. The city declared two air alerts during the night and the morning.

Monitoring Telegram channel Krymsky Veter reported machine-gun fire in Pishchane at 21:40 and in Andriivka shortly after, citing subscribers. 

"At 21:40 a machine gun started firing in Pishchane, at 21:48 a machine gun started in Andriivka, after which an anti-aircraft gun fired a couple of bursts," the channel wrote. 

Detonations followed near Cape Fiolent, in Sevastopol, and later in Bakhchysarai. By morning, Krymsky Veter reported explosions and shooting in Saky.

Russia's Defense Ministry claimed the destruction of 330 drones over Russia and the occupied territories in the same overnight period.

Update

The First Assault Brigade shared the footage of the strikes: