Russia claims new 'proof' Ukraine was planning attack on Donbas
Reuters says it can not independently verify the documents, written in Ukrainian, which appear to outline combat preparations for tactical military units.
In February, Russian President Vladimir Putin recognised two Russian-backed regions in east Ukraine, the Donetsk People's Republic and the Luhansk People's Republic, as independent states. Later, Putin ordered troops into the two regions, before the war in Ukraine began.