“Efremov… Tula region… reports of a glow in the factory area… locals heard 10 explosions,” reads a post on one Telegram channel, which shows a video of the attack during which the explosions can clearly be heard.
Social media posts also indicate that firefighters are on their way to the scene.
Tula Region Governor Dmitry Milyaev reported on the evening of December 23 about the danger of a drone attack in the region. Later, in the early hours of Wednesday, he wrote that the threat of drone strikes still persists.
The Efremov Synthetic Rubber Enterprise is one of the first producers of synthetic rubber and high-molecular-weight polyisobutylene in Russia.
In recent years, the plant has faced a decline in sales and profits, partly due to falling demand and changing market conditions.
In May of this year, a chemical plant, Azot, in the Tula region was attacked. The drone attack caused a fire, and three people were injured.
A few days later, strike drones left residents of Tula and the surrounding region without electricity. Prior to that, 14 explosions were reportedly heard in the sky.