The Ukrainian Defense Ministry has refuted the Russian Federal Security Service's (FSB) report that members of a sabotage and terrorist group from the Ukrainian Defense Ministry's Chief Directorate of Intelligence were detained in Sevastopol.

"In reality, the FSB did not detain any saboteurs because they are not present in Crimea and Sevastopol. Russian special services are trying to show their efficiency in such a way, once again misleading the supreme Russian leadership, the people and the international community," Ukrainian Defense Ministry spokesman Andriy Lysenko told Interfax on Thursday.

The Ukrainian Defense Ministry's Chief Directorate of Intelligence later refuted information about the presence of saboteurs in Crimea.

"The Chief Directorate of Intelligence of the Defense Ministry of Ukraine has refuted the claims of the FSB of the Russian Federation that officers of the Chief Directorate of Intelligence were allegedly detained in Sevastopol. It is another fake report by Russian special services aimed at covering up the repressive actions against residents of the peninsula, as well as aimed at discrediting Ukraine in the eyes of the international community," the directorate said in a statement published on the Ukrainian Defense Ministry's website.

It became known earlier that Russian FSB officers had detained members of a sabotage and terrorist group from the Ukrainian Defense Ministry's Chief Directorate of Intelligence.