.Putin contacts cross-border strike in Kursk area a 'justification' The Washington PostRussia mentions Ukrainian soldiers crossed right into its own region and also introduced 'enormous attack' CNNHow deep right into Russian region possesses Ukraine's surprise August incursion reached? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The New York TimesRussia: State of unexpected emergency in Kursk in the middle of attack DW (English).