The security agency says it knew of the alleged operation in advance and choose the moment to intervene

A Ukrainian plot to damage a key component of Moscow’s air defense system has been thwarted, according to Russia’s Federal Security Service (FSB).

In a statement on Monday, the agency accused the Security Service of Ukraine (SBU) of organizing the operation and recruiting a man in Ukraine’s Dnepropetrovsk Region to carry it out. The SBU allegedly supplied him with small drones and improvised explosive devices.

The suspect recruited another person, and the pair retrieved the equipment in Russia’s Smolensk and Kaluga regions before heading to Moscow Region, the FSB said.…