A Russian oil refinery in Kirishi, Leningrad Oblast, was struck by a drone overnight, with the scale of destruction described as exceptional, according to a post on October 4th, 2025, by the Telegram account "Magyar🇺🇦". The account, which is associated with a Ukrainian SBS (Special Biological Systems) group, also released a rating of Ukrainian drone units for September 2025. The "Magyar🇺🇦" post, timestamped October 4th, 2025, included images from the #Kirishi Oil Refinery, stating the local governor confirmed a strike in the industrial zone. The geo-location provided points to coordinates 59.44790736559374, 32.038275162988114. This incident follows a previous report of an attack on the same facility between 5:04 AM and 6:04 AM UTC on October 4th, 2025, as indicated by FIRMS data. Separately, the "Magyar🇺🇦" post detailed a ranking of Ukrainian Defense Forces' drone units for September 2025, listing the "414 Birds of Magyara, SBS" as the top unit. The assessment stated that SBS groups accounted for 50 of the top 500 units and were responsible for "every third goal, every third unit of the enemy's living power." The post also noted that 12 units of unmanned forces constitute 2.2% of Ukraine's total defense forces and that SBS groups were created on June 3rd, 2025, comprising 12 units. In the early hours of October 4th, 2025, Russia launched a large-scale air assault on Ukraine, deploying 109 drones and 3 ballistic missiles. Ukraine's air defense successfully intercepted or suppressed 73 of the drones, but 3 missiles and 36 drones struck 21 locations across the country, with debris falling in four additional areas. Ukrainian People's Deputy Alexei Kuchenrenko criticized the management of "Ukrenergo" for inadequate protection of a substation where a transformer valued at $7 million was reportedly destroyed by drones, citing insufficient measures and potential mismanagement.
