Russia's Federal Security Service FSB said it had detained a Russian man in Crimea who was gathering information for Ukrainian security services. This was reported by TASS with reference to the agency.
During searches, Russian security forces allegedly found an explosive device.
"The Federal Security Service during operational and investigative measures prevented reconnaissance and subversive activities of the citizen of the Russian Federation Yesipenko in the interests of the Ukrainian special services," the statement said.
According to the FSB, a citizen of the Russian Federation took photos and videos of the area, of critical infrastructure and places of mass stay of people on the territory of the annexed Republic of Crimea.
"According to the detainee Yesipenko, he collected information in the interests of the special services of Ukraine on the instructions of the officer of the current reserve of the 8th Division of the 5th Department of the Foreign Intelligence Service of Ukraine, Colonel Kravchuk. He kept the improvised explosive device in the car for ensuring safety on his recommendation," FSB reported.
Earlier, that investigators of the Security Service of Ukraine reported on suspicion to the official of Russian FSB for assistance in 2014 in the occupation of Crimea by bribing the Ukrainian military personnel.