Ukraine plans to intensify strikes on Russia's logistics and fuel infrastructure, stated Rustem Umerov, Secretary of Ukraine’s National Security and Defense Council, as reported on October 4th, 2025. This announcement comes as Ukraine’s Special Operations Forces confirmed striking the Russian Project 21631 Buyan-M corvette RFS Grad 575 on Lake Onega in Karelia at 04:31 UTC on October 4th, 2025, damaging its starboard engine compartment. Further details from the General Staff of Ukraine's Armed Forces confirm overnight strikes on multiple high-value Russian targets. The Kirishinefteorgsintez refinery in Leningrad region, with an annual capacity of 18.4 million tons, was hit and experienced explosions and fire. The Buyan-M missile ship was damaged on Lake Onega in Karelia, and in Kursk region, Ukrainian forces struck a Harmoni radar system and an Iskander missile transport-loader. A command post of Russia’s 8th Army in occupied Donetsk was also successfully targeted. The RFS Grad 575 vessel was en route from the Baltic to the Caspian Sea and is equipped with Kalibr-NK cruise missiles, having been commissioned in late 2022. Separately, Ukrainian President Volodymyr Zelenskyy reported that a drone strike on a train station in the Sumy region of Ukraine on October 4th, 2025, has resulted in at least 30 injuries. This incident follows reports from earlier in the day detailing a video of a Russian Shahed drone striking a passenger train in Shostka between 10:05 AM and 10:34 AM UTC, amid a large-scale Russian air assault. Social media posts from Biysk, Altai Territory, indicate ongoing fuel shortages in some Russian cities, with residents participating in weekly searches for gasoline. The previous report from October 4th, 2025, mentioned a warning issued at 13:07 UTC regarding the probable launch of ballistic missiles from the east, potentially Iskander or C-300/C-400 systems. This followed a large-scale Russian air assault on October 4th, 2025, involving 109 drones and 3 ballistic missiles. A previous report also noted Ukrainian intelligence recording China providing Russia with satellite intelligence data for missile strikes in Ukraine.
