.Putin phones cross-border strike in Kursk area a 'justification' The Washington PostRussia mentions Ukrainian troops intercrossed into its own territory and also launched 'extensive strike' CNNHow deep into Russian territory possesses Ukraine's surprise August incursion hit? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The The Big Apple TimesRussia: State of emergency in Kursk amidst incursion DW (English).