.Putin phones cross-border assault in Kursk area a 'provocation' The Washington PostRussia states Ukrainian soldiers crossed into its territory as well as launched 'enormous attack' CNNHow deep right into Russian area has Ukraine's unpleasant surprise August attack gotten to? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The The Big Apple TimesRussia: Condition of unexpected emergency in Kursk amid attack DW (English).