.Putin phones cross-border attack in Kursk area a 'provocation' The Washington PostRussia points out Ukrainian troops crossed in to its area and released 'large attack' CNNHow deep in to Russian region has Ukraine's shock August incursion gotten to? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The The Big Apple TimesRussia: Condition of unexpected emergency in Kursk in the middle of incursion DW (English).