Russia and Ukraine dispute the status of the Kursk region, which Kyiv invaded last year in a surprise and successful incursion into Russian territory.

The General Staff of the Armed Forces of Ukraine has reported that since the start of the Kursk operation, Russia has lost more than 62,000 soldiers and more than 4,500 North Korean servicemen in the Kursk operational zone.

Russian President Vladimir Putin hailed on Saturday what he called the complete failure of an offensive by Ukrainian forces into Russia's Kursk region after they were expelled from the last village Moscow said they had been holding.

Russia said it arrested a man suspected in the murder of a senior military official near Moscow and claimed that a car bomb had been activated remotely from Ukraine.

Russia’s Foreign Ministry called it a “terrorist attack,” and surveillance footage showed a car exploding as Lt. Gen. Yaroslav Moskalik was approaching it in a Moscow suburb.