Drones struck a Russian military plant in Michurinsk, Tambov Oblast, in the early hours of June 6, according to media outlets in Russia.
Attacks were also reported in Russia's Saratov, Moscow, Tula, Belgorod, and Kaluga oblasts.
The Kyiv Independent could not verify these reports at the time of publication.
The JSC Progress Plant in the city of Michurinsk in Tambov Oblast came under fire overnight, Russian Telegram news channels reported, citing local residents.
In the Russian capital, Mayor Sergey Sobyanin claimed that air defense units repelled 10 drones bound for Moscow.
Less than a week later, Ukraine launched Operation Spiderweb, an audacious mass drone strike that reportedly damaged 41 Russian military planes.
In the days since, Ukraine has continued to target key Russian military assets, launching strikes against missile bases and the Crimean Bridge. »