Ukrainian drones attacked the Azot chemical plant in Russia's Perm Krai overnight on Oct. 3, regional Governor Dmitry Makhonin reported. Located about 1,700 kilometers (1,056 miles) from Ukrainian-controlled territory, the plant produces ammonia, urea, and ammonium nitrate, as well as higher aliphatic and crystalline sodium nitrite. Reuters previously reported that five Russian chemical companies supplied over 75% of the materials used by the country's explosives and gunpowder factories since the start of the full-scale war. Russia's Defense Ministry claimed its forces downed 20 Ukrainian drones over Russian-controlled territory, but it did not mention any activity in Perm Krai. The attack follows a Sept. 25 drone strike on a chemical plant in Russia's Krasnodar Krai, which sparked a fire and forced evacuations, according to Russian independent media outlet Astra.