.Putin contacts cross-border assault in Kursk region a 'provocation' The Washington PostRussia states Ukrainian soldiers intercrossed right into its region and launched 'substantial assault' CNNHow deep in to Russian area has Ukraine's shock August attack hit? MeduzaUkraine Launches Rare Cross-Border Ground Assault Into Russia The The Big Apple TimesRussia: State of emergency in Kursk in the middle of attack DW (English).