.Putin phones cross-border strike in Kursk location a 'justification' The Washington PostRussia mentions Ukrainian troops crossed in to its territory and also introduced 'substantial attack' CNNHow deep in to Russian region has Ukraine's surprise August incursion hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York TimesRussia: Condition of emergency situation in Kursk in the middle of incursion DW (English).