KIEV, March 11 – Any attempts to nationalize Ukrainian enterprises of the defense and industrial complex located in Crimea threaten Ukraine's national security, the Ukroboronprom State Concern said.

"Enterprises of the state concern located in Crimea are deeply involved in the system of production cooperation of Ukroboronprom as a part of the realization of strategic international contracts. The loading of the enterprises allowed their stable operations to be restored in some cases, for example, at OJSC Morye Shipyard and Feodosia Optical Plant, and strengthened the economic positions of one of the leaders of national instrument-making PJSC Phiolent Plant," reads a statement of the concern's press service issued on March 7.