A Russian strike on a residential building in central Ukraine killed at least 14 people, including two children, emergency services said, one of many attacks across the country this weekend.

Sergey Efremov, the deputy governor of Russia’s eastern region of Primorsky Krai, was killed after he returned to the Russian frontline from a battle with Ukrainian forces in the Kursk region. He was reportedly travelling in a car blown up by a landmine along with another Russian army officer.

Russia launched a barrage of drones and missiles on Ukraine on Saturday, killing at least four civilians and damaging residential buildings and infrastructure across the country, Ukrainian officials said.

Kyiv and Moscow traded blame Sunday for a strike on a school in a Ukrainian-occupied town in Russia's Kursk region, as Washington urged both sides to make compromises to end