Russia launched another prolonged drone attack on Ukraine, killing one person and damaging swathes of Kyiv as well as striking a maternity ward in the southern port of Odesa, regional officials said early on Tuesday.

Russia launched 479 drones at Ukraine in the war’s biggest overnight drone bombardment, the Ukrainian air force said.

Russia launched a drone attack on Kyiv overnight into Tuesday, with air raid sirens blaring for hours and residents hearing regular explosions, and local officials reporting damage to residential buildings and at least two people wounded.