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Associated Press

Ukraine says Russia is trying to break through its defenses in the northeastern Kharkiv region

Ukraine rushed reinforcements to its northeastern Kharkiv region to hold off a Russian attempt to breach local defenses, authorities said, a tactical switch in the war by Moscow that Ukrainian officials have been expecting for weeks. Intense nighttime shelling targeted Vovchansk, in the Kharkiv region and less than 5 kilometers (3 miles) from the Russian border, regional Gov. Oleh Syniehubov said. Then, around dawn, Russian infantry tried to penetrate Ukrainian defenses near Vovchansk, Ukraine’s Defense Ministry said, adding that it had deployed reserve units to fend off the attack.