 While moving eastwards in the European Scythian lands, he captured the large fortified city of the Budini, one of the allies of the Scythians, and burnt it.Darius eventually ordered a halt at the banks of Oarus, where he built "eight great forts, some eight miles distant from each other", no doubt as a frontier defence.In his "Histories", Herodotus states that the ruins of the forts were still standing in his day.