It gave no further detail. The Russian defence ministry did not immediately reply to a request for comment, and Reuters was unable to independently verify the Ukrainian military’s account.

The United States has provided Ukraine with advanced rocket systems capable of hitting targets up to 80 km away.

Ukraine said on Wednesday that around 50 Russian soldiers were killed or wounded on Tuesday in a shelling attack on the village of Denezhnykove, 70 km behind front lines in the eastern province of Luhansk.