REUTERS

This was announced by Deputy Commander of the Anti-Terrorist Operation (ATO) forces in eastern Ukraine Valentyn Fedychev in his update on the ATO zone for April 15, Donetsk Regional State Administration's press service wrote on Facebook.

"We again report about the new arrival of 25 tanks, up to 5 Grad BM-21 systems, over 15 trucks from Russian territory through the Dolzhansky checkpoint [in territory in Luhansk region that is not controlled by the Ukrainian government at the moment]," he said.

"We are closely monitoring these movements of military hardware across the Ukrainian-Russian border," he added.

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