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

The attack used almost 500 drones and missiles, breaking a record set just days earlier, as Russia tries to overwhelm Ukraine’s air defenses, which shot down most of the weapons.

Russia temporarily suspended flights at all major Moscow airports on Tuesday after reports of a Ukrainian drone attack. The move came hours after both countries launched large-scale drone assaults.