“The activity of 37 underground workshops for the modernization of weapons and the manufacture of ammunition has been terminated,” the DSP noted.

Seized 251 firearms, 80 kg of explosives, 21 artillery ammunition, nine hand grenades, more than 25 thousand rounds of various calibers, 46 devices for silent shooting.

In February, it was reported that the FSB had shut down 28 clandestine weapons workshops in 19 Russian regions.