The raging blazes have reached the Federal Nuclear Center in the central Russian city of Sarov.
But despite the fires surrounding the facility, measures have been taken to remove all explosive and radioactive substances from the site.
The head of Russia's nuclear regulatory body, Sergey Kirienko, says there is no danger.
“The situation is complex, but it is completely under control,” he told RT. “The fire is inside a federal security zone, but it doesn't pose any threat to nuclear facilities in the center itself. Heavy equipment and human resources, including the army, have been mobilized to fight the blazes.”
Sergey Novikov, a spokesperson for nuclear agency Rosatom, told RT that the Sarov nuclear center was designed 60 years ago and the location for it was chosen with several factors taken into account. One of them was the lowest number of sunny days so that the facilities would be safe from air intelligence.
“Now, as far as we see, the climate is changing and it is probably not the last hot summer that we will have. We have to protect our facilities from this kind of threat such as wildfire. So I think one of the decisions which will be taken [is] to widen this fire-break space near physical protection barriers of facilities and industrial sites.”