Death Toll Rises to 13 in Kopeysk Artillery Plant Explosion

Tragedy Strikes Kopeysk Munitions Plant

The death toll from a powerful explosion and subsequent fire at the Plastmass artillery ammunition plant in Kopeysk, Chelyabinsk Oblast, Russia, has officially risen to 13. The incident, which occurred on the night of October 22-23, 2025, also left at least 19 people injured, with several requiring hospitalization, some in serious condition. As emergency services continue their work, 10 individuals remain unaccounted for.

The blast, reported around 22:30 YEKT on October 22nd, was so intense that it damaged nearby holiday homes and was felt by residents in the major industrial city of Chelyabinsk.

Investigation Underway, Drone Attack Ruled Out

The exact cause of the explosion is currently under investigation. While initial reports from some OSINT sources and Telegram channels suggested a possible drone attack, Chelyabinsk Governor Alexei Teksler has explicitly ruled out this possibility. Instead, a criminal case has been opened for 'violation of safety standards' that led to multiple deaths, indicating that breaches in technological processes are being considered as the primary cause.

The Plastmass plant is a critical facility within Russia's military-industrial complex, specializing in the production of various ammunition, including:

• Larger caliber munitions (76 to 152 mm)
• Mortar rounds (82-mm and 120-mm)
• High-explosive and cumulative shells (100-mm, 125 mm, 152 mm)
• Unguided S-8 aircraft missiles

The factory also handles the disposal of obsolete ammunition. Owned by Technodinamika JSC, a subsidiary of the state-owned military giant Rostec, the plant is subject to Western sanctions. Reports indicate that production at the facility had increased five-fold since the beginning of the conflict in Ukraine in 2022.

Official Response and Broader Context

In response to the tragedy, a municipal state of emergency has been declared in the Kopeysk urban district. Governor Teksler announced that Friday, October 24, would be a day of mourning in the region. Families of the victims have been promised compensation of 10 million rubles (approximately $125,265), and a street in Kopeysk will be named in memory of those who lost their lives.

This incident marks the second major explosion at a Russian munitions factory in less than a week. On October 17, an explosion at the Avangard factory in Sterlitamak, also part of Rostec, resulted in three fatalities. The Plastmass plant, located approximately 1,800 to 2,000 kilometers from the Ukrainian border, is the largest employer in Kopeysk, a city with a population of 140,000.