Hours later, Russia launched a glide bomb and a drone at the front-line town of Kostyantynivka in eastern Ukraine, killing four civilians and injuring a fifth, the prosecutor’s office said. The drone struck a car in which a married couple were travelling, killing the 39-year-old woman and 40-year-old man on the spot, it said.

The Ukrainian attacks came just days after Russia pummelled Kyiv with waves of drones and missiles overnight into Friday, in what Ukrainian officials called the largest such strike since Moscow’s all-