Three Ukraine-based Russian paramilitary groups say they have crossed into Russia and are now fighting government troops there.
The Freedom of Russia Legion (FRL) and Siberian Battalion (SB) posted videos purportedly showing their fighters in Russia’s Belgorod and Kursk regions.
The FRL and an exiled Russian politician claimed two villages were now in control of “liberation forces”.
Russia’s defence ministry said the breakthrough attempts were thwarted.