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Russia's FSB Federal Security Service has detained a resident of occupied Crimea who allegedly "set caches with ammunition and explosives on the instructions of the Ukrainian special services."

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"During a search operation, nine electric detonators, three fuses, delayed-action detonators and blasting explosives with a total mass of over 5 kg were found and seized in the caches uncovered in the city of Simferopol," the FSB's press service told UNIAN.

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The Investigative Department of Russia's FSB in occupied Crimea and the city of Sevastopol initiated criminal proceedings against the detainee under Part 2 of Article 222, Part 2 of Article 222.1 of the Criminal Code of Russia (illegal acquisition, storage, transportation of explosives and ammunition committed by a group of persons in a preliminary conspiracy).

"The search operation and investigative actions are underway. According to a court decision, a preventive measure in the form of detention has been selected against the suspect," it said.

The FSB does not disclose the detainee's name.