Russia has started a covert mobilisation of reservists, claims Ukraine’s military in its latest news bulletin at 04:00 GMT on 4 April.
“During the selection of candidates, preference is given to those who already have combat experience,” the report says, identifying five Russian regions and the main target areas.
It adds that Moscow is hoping to mobilise about 60,000 extra troops.
Russia has not commented on the Ukrainian report, the accuracy of which has not been independently verified.
However, Russian President Vladimir Putin had earlier last month said he would not send conscripts or reservists to fight in Ukraine, BBC reported.
