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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.

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.