Airports in Kaluga and Tambov introduced temporary restrictions on aircraft operations between 10:37 PM and 11:06 PM UTC on September 28th, 2025, according to the Federal Air Transport Agency. These restrictions coincide with a fire at the Karachevsky Plant of Electrodenetal in the Karachevsky district, reportedly caused by an "arrival," as stated by Dnipro Osint. The Karachevsky Plant, which develops and produces radio-electronic equipment, is part of the concern "Radioelectronic technologies." The fire began in the factory shops, according to Dnipro Osint, which provided coordinates 53.127086354707295, 35.008580155847966 for the incident. This development follows a rocket danger alert previously issued for the Bryansk region, including the Karachevsky district, on September 28th, 2025, at approximately 9:09 PM UTC. The alert was confirmed in Bryansk itself, though specific details regarding the threat's origin or nature remained undisclosed by authorities prior to the fire report.
