An anti-Putin Russian group, which claimed to have crossed the border from Ukraine and attacked Russia’s Belgorod region, has said its goal is the “complete liberation of Russia."

In a Telegram post Tuesday, the Freedom for Russia Legion called the attack in the Belgorod region a "peacekeeping operation." It said the goal was to create a "demilitarized zone between Russia and Ukraine, to destroy the security forces that serve the Putin regime and to demonstrate to the people of Russia that it is possible to create pockets of resistance and successfully fight against the Putin regime." 

The legion, which is aligned with the Ukrainian army, also claimed it had destroyed a motorized rifle company of the Russian army on Tuesday, destroying armored vehicles. CNN has not verified this claim.

It was not immediately clear whether the legion claimed to have struck the Russian forces inside Russian or Ukrainian-held territory.

The Russian Volunteer Corps (RDK), a second anti-Putin Russian group that has also claimed to have been involved in cross-border attacks, posted videos to Telegram on Tuesday showing their fighters inside Belgorod region. CNN cannot verify when these videos were filmed but has geolocated them to Belgorod.

A caption to a video purporting to show RDK fighters riding a vehicle at a border point said, “The situation on the small but now our own little piece of our homeland is still disturbing, and it wouldn't hurt to clean it up.”