Imagery confirms Serpukhov arsenal damage

TLDR

• CyberBoroshno says satellite imagery shows workshops 24 and 25 and a nearby hangar damaged at Serpukhov's 75th Arsenal.¹²
• Greenpeace analysts told The Insider that 26 October imagery shows burn marks at several points on the site.³
• Ukrainian military officials had not commented, and the workshops' roles come from Ukrainian OSINT projects.¹³⁴

Satellite imagery analysed by the Ukrainian GEOINT project CyberBoroshno shows damage to workshops No. 24 and No. 25 and an adjacent storage building at the 75th Arsenal in Serpukhov, Moscow Oblast, after a drone strike overnight into 22 October, according to Ukrainska Pravda.¹ The monitoring channel Exilenova+ posted a separate before-and-after comparison, and Militarnyi describes the third damaged building as a hangar.¹²

Why it matters: the case pairs two independent readings of the same site. CyberBoroshno identifies which buildings were hit, and Greenpeace analysts, speaking to The Insider, read fire signs from a 26 October image without naming the buildings.¹³ The 22 October reports had only assumed that workshops 24 and 25 were hit.¹

Driving the news:

• CyberBoroshno says the workshops hold lines for dismantling, diagnosing, repairing and overhauling air defence components, including S-300V, Buk and Tunguska-M parts and radar reconnaissance systems.¹²
• The Insider says Greenpeace analysts saw burn marks in the upper left of the 26 October image, with more signs of fire near a hangar in the centre and in the lower left.³
• Militarnyi gives the drone-threat alert as 9:21 p.m. on 21 October to 4:12 a.m. on 22 October, and credits its imagery to CyberBoroshno, Google Earth and Vantor.² The Insider credits Planet Labs.³
• Gwara Media quotes Moscow's mayor saying 630 drones flew towards the region that night and most were shot down.⁴

The big picture: the 75th Arsenal is part of Rostec and repairs Buk-M1/M2 and S-300V systems, Ukrainska Pravda says.¹ The Insider cites OSINT analyst Jompy, who wrote in March 2024 that the site looked like Russia's largest known air defence storage base, and analyst Athene Noctua, who counted 574 of 950 identified Ground Forces air defence units there in June 2024.³ Experts quoted by Ukrainska Pravda say hits on workshops that return equipment to service may slow repairs and deliveries to troops, which is an assessment, not a measured effect.¹

The other side: the building functions come from open-source data cited by CyberBoroshno and from the Ukrainian project Oko Hora, not from any official source.¹³ Gwara Media says Ukrainian military officials had not commented, and the coverage reviewed carries no Russian statement on damage.⁴ The extent of lost repair capacity is not known.

Single-source note: the building-level damage identification traces to CyberBoroshno and Exilenova+, restated by Ukrainska Pravda, Militarnyi and Gwara Media. Only the fire-sign reading rests on a different analyst (Greenpeace, via The Insider). The images were not independently reviewed here. The strike was on 22 October and the imagery coverage on 27 October.