There was no immediate confirmation from Ukrainian sources or from the Russian Defence Ministry.
Russia has taken 950 square kilometres of territory in Ukraine in two months.
As Moscow and Kyiv talk of possible peace, the war has intensified with Russian forces carving out a 200 sq km chunk of Ukraine's Sumy region and entering the Dnipropetrovsk region in May.
The authoritative Ukrainian Deep State map shows Russia now controls 113,588 sq km of Ukrainian territory, up 943 sq km over the two months to June 28.
Russia's state RIA news agency quoted a pro-Russian official, Vladimir Rogov, as saying that Russian forces had taken control of the village of Dachnoye just inside the Dnipropetrovsk region.
Russia has said it is willing to make peace but Ukraine must withdraw from the entirety of four regions which Russia mostly controls and which President Vladimir Putin says are now legally part of Russia.
Ukraine and its European backers say those terms are tantamount to capitulation, Russia is not interested in peace and they will never accept Russian control of a fifth of Ukraine.
The areas under Russian control include Crimea, more than 99 per cent of the Luhansk region, over 70 per cent of the Donetsk, Zaporizhzhia and Kherson regions, all in the east or southeast, and fragments of the Kharkiv, Sumy and Dnipropetrovsk regions.
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