.Putin calls cross-border assault in Kursk region a 'provocation' The Washington PostRussia mentions Ukrainian troops crossed into its own area and introduced 'massive strike' CNNHow deep right into Russian territory possesses Ukraine's surprise August attack hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York City TimesRussia: Condition of emergency situation in Kursk among attack DW (English).