REUTERS

That's according to the press center of the Joint Forces Operation Headquarters referring to the Main Intelligence Directorate of the Ministry of Defense.

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Last week alone, Russia delivered to the occupied areas in eastern Ukraine at least 10 armored combat vehicles, up to 30 trucks loaded with small arms, ammunition, and military equipment, as well as about 1,000 tonnes of fuel, Ukrainian military intelligence has reported.

"Also, servicemen with individual units of the Russian armed forces, which are not part of the 1st and 2nd Army Corps, went on rotation, along with the arrival of mercenaries – Russian citizens – to replenish the ranks of Russia's occupation forces," the report concludes.