Three gunmen were detained in a special operation in Nazran on Friday. A homemade explosive device equivalent to ten kilograms of TNT was found in the house of one of them, and 400 grams of plastic explosives, three kilograms of ammonium powder and nitrate, used to make explosive devices, and ammunition were found at the places of the other two. Police suppose the gunmen prepared terrorist attacks in the republic, Itar-Tass reported.