Russia's defence ministry says its forces are taking part in the battle for Soledar, a town north of Bakhmut in east Ukraine which has been the focus of recent fighting. It comes after the head of Russia's notoriously brutal Wagner mercenary group, Yevgeny Prigozhin, claimed his fighters were in full control there and boasted that only his troops took part. Mr Prigozhin will most likely use any victory to bolster the reputation of Wagner as an effective fighting force in the eyes of President Putin. But the Russian defence ministry appeared to contradict the controversial oligarch's claims. Spokesman Igor Konashenkov...