.Putin contacts cross-border attack in Kursk region a 'justification' The Washington PostRussia says Ukrainian soldiers intercrossed into its territory and released 'gigantic attack' CNNHow deep in to Russian territory has Ukraine's surprise August incursion hit? MeduzaUkraine Launches Rare Cross-Border Ground Attack Into Russia The New York City TimesRussia: State of emergency situation in Kursk in the middle of incursion DW (English).