Both sides suffer heavy casualties as Ukraine strikes back against Russia, U.K. assessment says

Russia and Ukraine are suffering high numbers of military casualties as Ukraine fights to dislodge the Kremlin's forces from occupied areas in the early stages of its counteroffensive, British officials said Sunday.

Russia and Ukraine are suffering high numbers of military casualties as Ukraine fights to dislodge the Kremlin's forces from occupied areas in the early stages of its counteroffensive, British officials said Sunday.

Russian losses are probably at their highest level since the peak of the battle for Bakhmut in March, U.K. military officials said in their regular assessment.

According to British intelligence, the most intense fighting has centred on the southeastern Zaporizhzhia province, around Bakhmut and further west in Ukraine's eastern Donetsk province. While the update reported that Ukraine was on the offensive in these areas and had "made small advances," it said that Russian forces were conducting "relatively effective defensive operations" in Ukraine's south.

The Ukrainian military said in a regular update Sunday morning that over the previous 24 hours Russia had carried out 43 airstrikes, four missile strikes and 51 attacks from multiple rocket launchers. According to the statement by the General Staff, Russia continues to concentrate its efforts on offensive operations in Ukraine's industrial east, focusing attacks around Bakhmut, Avdiivka, Marinka and Lyman in the country's Donetsk province, with 26 combat clashes taking place.

Donetsk regional Gov. Pavlo Kyrylenko said that two civilians were killed, with a further three wounded in the past day.

Ukrainian officials said Russian forces also launched airstrikes on other regions of the east and south of the country.

One civilian was killed and four more wounded in Kherson province as a result of Russia's attacks, said regional Gov. Oleksandr Prokudin, while Zaporizhzhia regional Gov. Yurii Malashko said one person was wounded in Russian attacks that hit 20 settlements in the province.