.Putin calls cross-border attack in Kursk region a 'provocation' The Washington PostRussia points out Ukrainian troops intercrossed into its own area as well as released 'massive strike' CNNHow deep right into Russian area possesses Ukraine's surprise August attack arrived at? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The Nyc TimesRussia: Condition of urgent in Kursk amid attack DW (English).