Occurred on April 27, 2017 / Chelyabinsk Region, Kunashak Village, Russia Info from Licensor: "Mayak-57 Heritage monitors the ecology and radiation safety of the flood plain of the Techa River and the famous town of Ozersk-40, where in 1957 there was an explosion and a radiation cloud that also covered our Kunashak district of the Chelyabinsk region. In one of the outings, we found dead fish on Lake Kunashak. Our organization had suspicions and speculation about the intentional destruction of fish by this tenant of the reservoir. In practice, the extermination of aboriginal fish in reservoirs, this method of destruction is used for development. We are looking for more expensive and valuable species of fish sold in Russia's commercial markets. Our Regional Environmental NGO "Mayak-57 Heritage" appealed to law enforcement agencies to find out all the circumstances and to find the culprit of this tragedy and keep the situation under control."