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.

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,

Russia hit Ukraine with a barrage of missiles and drones days after Kyiv's planned drone attack in Russian territory. The attack comes a day after President Trump voiced frustration on the stalled peace talks between the countries.