.Putin calls cross-border strike in Kursk region a 'provocation' The Washington PostRussia points out Ukrainian soldiers crossed right into its own territory and released 'enormous strike' CNNHow deep in to Russian territory possesses Ukraine's surprise August attack gotten to? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The The Big Apple TimesRussia: State of emergency situation in Kursk among attack DW (English).