“The federal security service on the territory of the Republic of Crimea stopped the preparation of a terrorist act,” the TASS intelligence service said.
According to the FSB, a Russian citizen, a supporter of ISIS, was detained in Simferopol.
This battalion takes part in the fighting against the Russian military in Ukraine.
Earlier, the FSB of Russia detained three IS supporters in Karachay-Cherkessia who were preparing a terrorist attack.
* "Islamic State" (ISIS, ISIL) - the organization was recognized as a terrorist organization by the decision of the Supreme Court of the Russian Federation of December 29, 2014.