Russia accused Ukraine on Wednesday of deploying half of its army or 125,000 troops to Donbass, a conflict zone in eastern Ukraine, where government forces have been battling Russia-backed separatists since 2014.
The accusation was levelled by Russian foreign ministry spokeswoman Maria Zakharova during a briefing in Moscow. There was no immediate response from Kyiv.
Russia has said it is worried about Ukrainian intentions as tensions between Kyiv and Moscow spike over Western fears about a new Russian attack on Ukraine, something Russia has dismissed as fear-mongering.