A fire broke out in the area of a major Russian steel plant in Lipetsk late on 27 October, Kyiv time, as air defenses fired at incoming targets, the Ukrainian monitoring Telegram channel Exilenova+ reported. Ukrainian partisans said the strike may have hit the plant. The region’s governor denied any large industrial fire.

Whether or not it was hit, the plant matters to Ukraine. The Novolipetsk Metallurgical Plant (NLMK) is Russia’s only producer of electrical steel, Ukrainska Pravda reported in April 2025. NLMK’s tax records, obtained by the outlet, showed sales of that steel to Moscow’s Avangard plant, which builds missiles for S-400 air defense systems. Russia also fires those missiles at ground targets in Ukraine.

Pantsir fires, no visible hit

The targets over Lipetsk were jet-powered, Exilenova+ wrote, citing preliminary reports of impacts and a fire toward the city’s airfield. Footage it posted showed a Pantsir air defense system firing, and the channel suggested the system may have failed to cope. It then reported the fire near NLMK, blaming air defense fire or a falling object.

We also observe a fire in the vicinity of NLMK (Novolipetsk Metallurgical Combine) resulting from air defense activity or the impact of an object. pic.twitter.com/7bBqyqCP2j

— Exilenova+ (@Exilenova_plus) October 27, 2026

The Crimean Tatar-Ukrainian partisan movement Atesh said its agents in Lipetsk reported an impact, and in a follow-up said they believe it may have hit NLMK.

Contracts and denials

A 2022 investigation by Disclose and its partners tied 18 NLMK contracts, all signed after 2014, to eight Russian defense firms, including an S-300 maker. NLMK confirmed the contracts but said only a “negligible” amount of civilian steel grades went to those firms.

On 28 October, Lipetsk Oblast Governor Igor Artamonov claimed air defenses downed 45 drones over the oblast overnight. He insisted reports of a large industrial fire were untrue, saying drone debris fell in a tree belt and sparked a fire, since contained. Debris also blew out windows in a Lipetsk apartment block, and one person sought medical help but needed no hospitalization, he added. Whether NLMK took any damage remains unconfirmed.

Earlier strikes on weapons suppliers

Earlier, UK-supplied Storm Shadow missiles reportedly struck a battery plant in Yelets, in the same oblast, on 25 October. Two days before that, they reportedly hit an electronics plant in Oryol. OSINT channels described both as suppliers of parts for Russian missiles.

An explosion hit the 75th Arsenal, a Russian army plant in Serpukhov south of Moscow, overnight on 22 October, Russian Telegram channel Astra reported. Russian officials also claimed drone attacks on the Moscow region, Tula, and Lipetsk that night.

As Russia presses its full-scale invasion, Ukraine’s long-range drones and missiles keep hitting military plants and refineries deep inside Russia. Ukrainian outlet Militarnyi says this plant specializes in repairing Buk and S-300 air defense systems. Astra describes it more broadly, as making weapons and ammunition and repairing military equipment. If Militarnyi is right, the blast hit a site that fixes Russian air defenses. It came the night Moscow’s mayor credited air defenses with stopping hundreds of drones.

Blast at the arsenal

An Astra OSINT analyst placed the explosion inside the site from a video, the channel said. Residents claimed in local chats that blasts followed passing drones, then at least three missiles. Astra did not confirm the missile count. Serpukhov lies about 99 km south of Moscow. Ukraine has sanctioned the plant, and the US Treasury has listed it too. As of the morning of 22 October, no Russian official had confirmed the blast.

More footage of the attack on the arsenal in Serpukhov. We are awaiting satellite images. pic.twitter.com/tTsgc18W3L

— Exilenova+ (@Exilenova_plus) October 22, 2026

630 drones, by Moscow’s count

Moscow Mayor Sergei Sobyanin claimed that 630 drones flew toward the Moscow region from 20:30 on 21 October to 04:00 on 22 October. He claimed most were destroyed far out and 163 were neutralized on approach to Moscow. Two people were injured in Voronovo, in New Moscow, he stated.

Tula Oblast Governor Dmitry Milyaev claimed air defenses downed 70 Ukrainian drones over his region. Private homes were damaged in Tula and the Zaoksky district, he stated.

Lipetsk governor claims homes and a clinic damaged

Earlier in the night, Ukrainian monitoring channel Exilenova+ posted footage of commotion in Lipetsk after explosions. Lipetsk Oblast Governor Igor Artamonov claimed a drone strike damaged homes, apartment blocks, and a closed polyclinic. A man born in 2001 was injured and hospitalized, Artamonov claimed.

Lipetsk, moment of the explosion. https://t.co/wCX6GVThQr pic.twitter.com/bGwGLbUm2d

— Exilenova+ (@Exilenova_plus) October 21, 2026

In May, Ukrainian intelligence said Russia was deploying more regiments against strike drones. In September, Ukrainian units hit more Russian air defense systems and radars than in any month since 2024, Ukraine’s Defense Ministry said. Analyst Oleksandr Kovalenko counted 76 destroyed in September with days of the month still to go and argued Russia cannot replace such losses. If Militarnyi’s description holds, losing repair capacity would deepen that gap.