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.

Apart from drones, 20 missiles of various types were fired at different parts of Ukraine, according to the air force, which said the barrage targeted mainly central and western areas of Ukraine.

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.