.Putin gets in touch with cross-border attack in Kursk area a 'justification' The Washington PostRussia says Ukrainian troops intercrossed in to its own region and also launched 'extensive strike' CNNHow deep into Russian region 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 surrounded by attack DW (English).