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Multiple powerful explosions were reported overnight as strikes hit military facilities and energy sites across the city . Razvozhayev acknowledged that Russian forces — including aviation, air defense units, and mobile fire groups — attempted to repel what he described as a "massive attack," claiming more than 30 Ukrainian drones had been neutralized .

Part of a Broader Nationwide Wave

The Sevastopol attack was not isolated. Russia's Defense Ministry claimed its air defenses intercepted and destroyed 362 Ukrainian drones over Russian regions, the Black Sea, and the Sea of Azov that night . In a significant deep strike, Ukrainian drones also hit the Gazprom Neftekhim Salavat oil refining and petrochemical complex in Bashkortostan, roughly 1,300 km from the Ukrainian border, causing a fire at the facility . Two civilians were wounded there . A Wildberries logistics center in the same region was also struck .

President Volodymyr Zelenskyy described the overnight operation as a "unique" blitz using anti-ship missiles and drones that significantly damaged Russia's Black Sea naval stronghold . He specifically mentioned the attack on the naval base in Novorossiysk, another key Russian Black Sea Fleet hub, suggesting the operation targeted multiple locations along the coast.

Ukraine's Unmanned Systems Forces reported striking 29 energy facilities in occupied territories that day, with the Balaklava Thermal Power Plant in Sevastopol among the confirmed targets . Between July 1 and August 13, 2026, the unit had struck 240 energy facilities in total .

Immediate Aftermath: Power, Casualties, and Continued Activity

Electricity in Sevastopol was later partially restored using an alternative supply scheme, though the damage to infrastructure was significant . The attack caused a sharp spike in conflict-related events: according to one monitoring group, verified drone strikes on energy infrastructure in Sevastopol were up 600% against the seven-day baseline .

On August 13 itself, five people were killed in Sevastopol while trying to defuse an explosive device left by the attack. Four were pyrotechnicians from Russia's Emergency Ministry and one was a security guard . The Russian-installed governor Razvozhayev publicly named the dead: Capt. Anton Chudakov, head of a unit; Capt. Aleksandr Panchuk, senior pyrotechnician; and two others, along with security guard Dmitry Ivanov .

Drone activity continued into the following day. On August 14, Russian air defense claimed to have shot down six Ukrainian drones over three districts of Sevastopol: the Northern Side, Nakhimovsky, and Gagarin districts .

Strategic Context

The August 13 attack on Sevastopol is the latest in Ukraine's months-long campaign to isolate occupied Crimea by degrading the fuel, power, and transport networks Russia relies on to hold the peninsula . By striking both the Balaklava power plant and the Nebo-U radar in a single night, Ukraine demonstrated an ability to target critical infrastructure and high-value military assets simultaneously, while also reaching deep into Russian territory with strikes on energy and logistics facilities far from the front lines.

As of this writing, there has been no independent verification of the extent of damage to the Balaklava plant or the Nebo-U radar from sources outside Ukraine and Russia. Both sides' claims should be weighed accordingly.