“It is worth noting separately the use of the Chernobyl nuclear power plant zone as a site for the development of nuclear weapons,” the source said to RIA Novosti.

According to the source, the increased radiation background, natural for the Chernobyl zone, hid the conduct of such work.

At the same time, employees of the Odessa National Polytechnic University, who have experience in the field of mathematical modeling of the kinetics of thermonuclear reactions, were involved in the development of certain problems in this area, the interlocutor noted.

Together with them, specialized departments of the Kiev National University and the Institute of Physics and Technology of Materials and Alloys of the National Academy of Sciences, which specialize in computer modeling in the field of hydrodynamics and continuum mechanics and continuum mechanics, were involved, the agency writes.

“Particular attention was paid to the implementation of projects in the field of metallurgy of nuclear materials and technologies for the production of special alloys, which were carried out at the Institute of Electric Welding and the Institute of Metal Physics,” the source said.

According to the interlocutor, the Institute for Problems of Materials Science and the Institute of Physics and Mechanics, which has experience in the field of special materials, including their anti-corrosion protection and processing, were involved in solving problems in this area.

The use of a "dirty" bomb involves the explosion of a munition with conventional explosives containing radioactive substances.

For example, when an ammunition is detonated, the container with isotopes is destroyed, and the shock wave carries radioactive substances.

The agency notes that such weapons have never been used in real conditions.

The source also said that in recent years, the Ukrainian authorities have been actively interested in uranium mining and enrichment.

He claims that "significant results" have been achieved in Ukraine in the field of modeling nuclear chain reactions, the separation of isotopes of fissile materials, and in the study and metallurgy of nuclear materials.

Simultaneously with the work on the creation of a nuclear explosive device, Kyiv was actively engaged in potential means of delivery of nuclear weapons, said a representative of one of the competent departments of Russia.

The clashes that occurred at the Zaporozhye nuclear power plant could have happened due to the storage of documentation there, which relates to promising work on the creation of nuclear weapons, he noted.