Ukrainian military intelligence claims its special forces crippled two high-value Russian landing vessels and a low-altitude radar system in Sevastopol Bay. The overnight operation signals another targeted strike on Moscow's Black Sea logistics, pending independent damage verification.

Between April18and19, 2026, operatorsfrom Ukraine's Main Directorateof Intelligence(HUR)executedacoordinatedovernightstrikeinside Sevastopol Bay[1.4]. Claimed by the HUR's specialized 'Prymary' (Ghosts) unit, the operation utilized combat drones to bypass Russian air defenses and hit targets moored in the harbor. Kyiv intelligence officials report the assault neutralized three distinct military assets, degrading Moscow's Black Sea Fleet logistics.

The primary targets were two large amphibious landing ships: the Project 775 Yamal and the Project 1171 Nikolai Filchenkov. Commissioned in 1988, the Yamal transports up to 500 tons of cargo, including troops and heavy armor, with an estimated replacement value of $80 million. The older Nikolai Filchenkov, built in 1975, boasts a 1,000-ton capacity and is valued at approximately $70 million. HUR statements assert both vessels sustained critical damage and are out of active service. Independent visual confirmation of the hull damage remains pending.

Beyond the naval vessels, the strike package eliminated a Podlyot-K1 radar installation situated in the Sevastopol area. Valued at roughly $5 million, the Podlyot-K1 is a low-altitude surveillance system critical for detecting incoming aerial threats. Blinding the local radar coverage likely secured the immediate strike vectors for the incoming drones. Russian authorities have not yet issued a formal damage assessment regarding the harbor or the radar site, leaving the exact operational status of the facilities unverified by third parties.

• HUR's'Prymary'unitdeployedcombatdronesovernighton April18-19, 2026, tostriketargetsinside Sevastopol Bay[1.4].
• Kyiv claims the operation disabled two Russian landing ships, the Yamal and Nikolai Filchenkov, valued at a combined $150 million.
• A $5 million Podlyot-K1 low-altitude radar system was also reportedly destroyed, though independent verification of the damage is pending.

The strike on Sevastopol Bay targets the core of Moscow's maritime logistics. Ukrainian military intelligence (HUR) places the combined financial loss of the Project 775 Yamal and Project 1171 Nikolai Filchenkov at $150 million [1.2]. While the monetary cost is significant, the strategic impact is heavier. Both amphibious landing ships are purpose-built to ferry heavy armor and infantry across the Black Sea, bypassing vulnerable overland routes to supply southern front lines. The concurrent destruction of a $5 million Podlet-K1 low-altitude radar system temporarily degrades local air defense coverage. Independent satellite imagery to confirm the extent of the structural damage is still pending.

Commissioned in 1988, the Yamal is a 112.5-meter Ropucha-class vessel designed for rapid beach deployments. Valued at over $80 million, it holds a maximum payload capacity of 500 tonnes. In a combat logistics role, this allows the ship to transport a mix of main battle tanks, armored personnel carriers, and a battalion-sized troop contingent directly to coastal staging areas. Disabling the Yamal removes a highly active workhorse from the Russian supply chain, complicating efforts to sustain mechanized units in occupied territories.

The Nikolai Filchenkov, an older Alligator-class ship built in 1975, presents a larger logistical footprint. Appraised at roughly $70 million, the vessel boasts a cargo capacity of 1,000 tonnes—double that of the Yamal. This volume translates to a loadout of up to 20 tanks or 40 armored fighting vehicles, alongside approximately 400 infantrymen. Eliminating a transport asset of this scale forces Russian commanders to shift heavy equipment deliveries to the heavily monitored Kerch Strait Bridge and exposed rail corridors.

• HUR estimates the combined value of the two disabled landing ships at $150 million, plus a $5 million loss for the Podlet-K1 radar [1.2].
• The Project 775 Yamal supports a 500-tonne payload, moving armored vehicles and troops directly to coastal drop zones.
• The Project 1171 Nikolai Filchenkov hauls up to 1,000 tonnes, capable of delivering 20 tanks and 400 infantrymen per trip.

Ukrainianspecialforcessystematicallydismantledacriticalnodein Moscow's Crimeanairdefensenetworkduringthe April18-19overnightoperation[1.4]. Operators from the HUR "Prymary" unit targeted and destroyed a Podlyot-K1 radar station situated in occupied Sevastopol. Valued at roughly $5 million, the hardware serves as the primary low-altitude detection system for Russian forces guarding the peninsula. The loss of this specific asset immediately degrades the airspace monitoring capabilities surrounding the Black Sea Fleet's headquarters.

The tactical fallout from eliminating a Podlyot-K1 extends far beyond the financial cost. The system is engineered to track low-flying threats—specifically cruise missiles and attack drones—and feed targeting data directly to S-300 and S-400 missile batteries. Stripping this radar from the grid effectively blinds the connected launchers, creating localized blind spots in the protective umbrella over Crimea. Without early warning telemetry, Russian anti-aircraft crews face severely reduced reaction windows against incoming Ukrainian munitions.

This strike fits a calculated pattern of degrading Russian sensor networks before launching heavier assaults on logistics hubs. While military intelligence released combat footage of the Sevastopol strikes, independent visual confirmation of the radar's total destruction remains pending. If the system is permanently offline, the resulting gap in low-altitude coverage leaves remaining naval assets and supply lines highly exposed to follow-on operations.

• OperatorsfromtheHUR'Prymary'unitdestroyeda$5million Podlyot-K1radarstationin Sevastopolduringthe April18-19operation[1.4].
• The system's destruction creates low-altitude blind spots, severing critical targeting data for Russian S-300 and S-400 missile batteries.
• Independent verification of the strike footage is pending, but the loss of radar coverage leaves regional logistics highly vulnerable to subsequent attacks.

Ukrainian Defense Intelligence(HUR)releasedcombatfootageearly Monday, April20, 2026, purportedlycapturingthe April18-19nighttimedronestrikesonthe Yamaland Nikolai Filchenkovin Sevastopol Bay[1.7]. The video shows direct impacts on maritime targets, but independent open-source intelligence analysts have not yet verified the severity of the damage. Moscow has issued no official response. The Russian Ministry of Defense remains silent on both the status of the landing ships and the alleged destruction of the Podlyot-K1 radar installation.

Pending satellite corroboration, the operation fits a clear pattern of systematic attrition against the Black Sea Fleet. Russian commanders increasingly depend on aging logistical assets like the 1975-built Nikolai Filchenkov and the 1988-built Yamal to ferry armored vehicles and troops into occupied territories. Disabling these vessels chokes a vital supply line. The simultaneous elimination of a $5 million low-altitude radar system punches a fresh hole in Crimea's air defense network, leaving the remaining harbor infrastructure highly vulnerable.

The strikes by the Prymary special unit underscore Kyiv's ongoing effort to neutralize Russian naval power through asymmetric warfare. Stripping the fleet of its transport capacity directly degrades Moscow's ability to reinforce southern Ukraine. Until commercial satellite imagery confirms the HUR claims, the true operational fallout is unknown. However, the targeted combination of blinding early-warning sensors and crippling heavy-lift ships reflects a calculated strategy to isolate the peninsula.

• Ukrainian intelligence released combat footage of the April 18-19 strikes, though independent verification of the damage remains pending [1.7].
• The Russian Ministry of Defense has not officially responded to the claims regarding the Sevastopol Bay operation.
• The targeted destruction of the Yamal, Nikolai Filchenkov, and a Podlyot-K1 radar aligns with Kyiv's broader strategy of degrading the Black Sea Fleet's logistics and defensive networks.