.Putin gets in touch with cross-border strike in Kursk location a 'justification' The Washington PostRussia claims Ukrainian troops crossed right into its own area as well as introduced 'large strike' CNNHow deep in to Russian area has Ukraine's unpleasant surprise August incursion arrived at? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The New York City TimesRussia: State of emergency situation in Kursk amidst incursion DW (English).