.Putin gets in touch with cross-border strike in Kursk location a 'justification' The Washington PostRussia states Ukrainian troops crossed into its own region and released 'substantial strike' CNNHow deep in to Russian area has Ukraine's shock August attack arrived at? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The New York City TimesRussia: State of urgent in Kursk in the middle of attack DW (English).