By Guy Faulconbridge and Lidia Kelly MOSCOW (Reuters) -Russian forces on Wednesday advanced further into Ukraine's northern region of Sumy, threatening the regional capital after taking more than 150 square km (58 sq miles) of the area in less than two weeks,

Russian forces are advancing in the northern Ukrainian region of Sumy, bringing the regional capital within range of their drones and artillery, according to Ukrainian officials and analysts.

At least three people were killed and twenty injured on Tuesday after Russian strikes hit Ukraine's northeastern city of Sumy.

Reports of an imminent Russian summer offensive and troop build ups on Ukraine's border are raising alarms in Sumy Oblast and fears that a large-scale assault could be on the horizon. Russian President Vladimir Putin on May 22 said he had ordered his military to create a "security buffer zone" along the border,

Russia's Crimean Bridge rocked by explosions, Ukraine's SBU claims responsibility Russian strike on downtown Sumy kills at least 4, injures 28, authorities say Ukraine to deploy new units to counter Russian drone attacks,

A Ukrainian drone attack has destroyed more than 40 Russian planes deep in Russia’s territory, Ukraine’s Security Service said Sunday, while Moscow pounded Ukraine with missiles and drones just hours before a new round of direct peace talks in Istanbul.