Ukrainian officials said only a few hundred residents remained in the north-east town of Vovchansk outside Kharkiv amid pitched battles. Russia was attacking new areas with small groups to try to widen the front and stretch Ukrainian forces, said the Kharkiv regional governor, Oleh Syniehubov. “The situation is difficult.” Russia’s forces were driving towards Vovchansk about 5km (3 miles) from the Russian border, as well as Lyptsi north of Kharkiv, Syniehubov said. Ukraine’s troops were trying to establish themselves at a meat plant on the outskirts of Vovchansk. About 5,700 people were evacuated from in and around Vovchansk and roughly...