.Putin contacts cross-border attack in Kursk location a 'provocation' The Washington PostRussia claims Ukrainian troops crossed right into its area and also released 'enormous assault' CNNHow deep right into Russian territory has Ukraine's unpleasant surprise August incursion gotten to? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The New York TimesRussia: Condition of unexpected emergency in Kursk amid attack DW (English).