Insurgents dig in; Ukraine tanks seen in the east

HORLIVKA, Ukraine (AP) - Pro-Russian insurgents dug in today across eastern Ukraine, fortifying their positions around seized buildings and erecting fresh barricades even as Ukrainian tanks took up positions outside one eastern city now controlled by armed men. In Kiev, Ukraine's acting president, Oleksandr Turchynov, announced an "anti-terrorist operation" to root out the separatists, but it was unclear how that measure differed from the one announced Monday, which resulted in no visible action.