Officials say a Russian missile and drone bombardment has killed at least 15 people and injured 156 others in Ukraine overnight, with the main barrage demolishing a nine-story apartment building in Ky

It was the deadliest attack on the Ukrainian capital in almost a year, and came as Moscow has intensified air assaults on the city.

Volodymyr Zelenskyy was due to hold talks with Donald Trump - but the US president has announced he is unexpectedly returning to Washington because of tensions in the Middle East.