Ukrainian officials say three people were killed and 13 were wounded when Russia attacked the country with waves of drones and missiles.

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.

The warring sides also exchanged prisoners in one of the few results of talks last week, and Russia reported new attacks on the front line.