.Putin contacts cross-border attack in Kursk region a 'provocation' The Washington PostRussia claims Ukrainian troops intercrossed right into its territory as well as introduced 'huge assault' CNNHow deep into Russian territory has Ukraine's shock August attack hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York City TimesRussia: Condition of emergency situation in Kursk amidst attack DW (English).