Ukrainian drone attacks hit NORSI refinery and Primorsk oil infrastructure

On April 5, 2026, Ukrainian forces conducted drone strikes targeting Russian oil infrastructure. Robert Brovdi, commander of Ukraine's unmanned aerial vehicle forces, confirmed strikes against the NORSI refinery in the Nizhny Novgorod region and the Primorsk oil port on the Baltic Sea. Russian authorities reported that 19 drones were intercepted by air defense systems. Governor of the Leningrad region, Alexander Drozdenko, stated that debris from destroyed drones caused damage to an oil pipeline near Primorsk. The pipeline was subsequently shut down, and a fire resulting from the incident was reported to be self-extinguishing. Russian officials confirmed that there were no casualties reported from these attacks. While Ukraine claims the strikes hit key logistics targets, Russian authorities emphasize that the damage was caused by falling debris from intercepted drones. These incidents represent a continuation of intensified Ukrainian efforts to disrupt Russian oil export capabilities in the Baltic region.