Moscow and Kyiv said civilians had been killed in the latest exchange of air strikes Wednesday, and Russian President Vladimir Putin vowed to restore security after a sharp increase in attacks on Russia's border regions.
The Russian regions of Belgorod and Kursk just across the border from Ukraine have come under intense attack over the past 10 days. Kyiv has launched a barrage of drone and missile strikes and pro-Ukrainian paramilitaries have attempted armed raids into Russian territory.
