By Tom Balmforth and Yuliia Dysa KYIV (Reuters) -Russian forces have captured four villages in Ukraine's northeastern Sumy region, the local governor said, the latest battlefield setback for Kyiv as it seeks to hold territory and avoid handing Moscow the advantage in any peace talks.

Russia fired its biggest-ever drone barrage on Ukraine on Monday, Kyiv said, escalating a deadly air campaign that analysts say offers little military value and instead appears intended to erode civilians’ morale.

A Ukrainian official says Russia has launched the biggest drone attack on Ukraine in the more than three-year war