[Jimbuna]

On day 18 of Russia's invasion.

Russia's assault has now widened to targets in the country's west. A barrage of Russian missiles have struck a military base, in Yavoriv, close to the border with Poland, killing 35 people.

The mayor of another western city, Ivano-Frankivsk, says Russian troops continue to hit its airport. And in Lviv - a western hub for people fleeing the conflict - air raid sirens sounded.

More fighting is also continuing in outskirts north of the capital Kyiv, as it braces for a possible encirclement by Russian forces.

And further north, in Chernihiv at least one person was killed when an apartment block was destroyed by Russian fire, authorities say.

In Ukraine's east, Russian troops are trying to surround Ukrainian forces as they advance from the port of Mariupol in the south and the country's second-largest city of Kharkiv in the north, UK defence officials say. Kharkhiv has suffered some of the heaviest Russian bombardment, with videos showing streets completely bombed-out and many buildings flattened. As Russian forces surround Mariupol, aid groups are warning of a humanitarian catastrophe.

And in the south, an air strike on the Black Sea city of Mykolaiv, near the strategic port of Odesa, killed nine people on Sunday, local officials say.