Air defences were engaged in Ukraine's capital of Kyiv on Thursday to repel a Russian drone attack, officials said, and Reuters witness reported explosions in the city while British Prime Minister Keir Starmer was visiting.

Ukraine wakes up with an air alert across the country, carries out preventive power cuts after a Russian attack in the Lviv region, without victims. Russia has launched over 40 missiles and about 70 drones in its attack early this morning against Ukraine,

Russia launched scores of missiles and drones at Ukraine on Wednesday, targeting gas infrastructure and other energy facilities in western regions in a new barrage against the struggling power system in the depths of winter.