.Putin calls cross-border attack in Kursk area a 'justification' The Washington PostRussia points out Ukrainian soldiers crossed into its own territory and released 'huge assault' CNNHow deep in to Russian region has Ukraine's shock August attack gotten to? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York TimesRussia: State of emergency situation in Kursk in the middle of attack DW (English).