Over 10 kilograms of toxic substances were found as a result of the special operation against terrorists carried out by law enforcement and Federal Security Service forces in the regional centre of Kurchaloi on Saturday, said the temporary press center of the Russian Interior Ministry in Khankala. The press centre did not provide the details. However, it became known that the temporary department of the interior in Kurchaloi Region received information that a batch of toxic substances arrived in one of the region's settlements. As a result of an investigative operation, the location of the cache was identified and the toxic substance was seized. Employees of the temporary press centre do not name the substance saying that it is currently under analysis.