Ukraine has repelled numerous Russian assaults along the line of contact in Donbas this week, a British military update said on Sunday.
Despite Russia making some territorial gains, Ukrainian resistance has been strong across all axes and inflicted a significant cost on Russian forces, the UK Ministry of Defence tweeted in a regular bulletin.
"Poor Russian morale and limited time to reconstitute, re-equip and reorganise forces from prior offensives are likely hindering Russian combat effectiveness," the update added.
Reuters could not immediately verify the report.
(Reporting by Shivam Patel in Bengaluru)