Massive overnight Russian strikes on Kyiv killed 10 people, Ukrainian officials said, as Moscow launched hundreds of drones and missiles at targets across the country. The strikes wounded more than 100 others in the Ukrainian capital,

Earlier, Kyiv mayor Vitali Klitschko said on his Telegram channel that a 62-year-old American was found dead in a house opposite where medics were providing assistance to victims of Russia's overnight strike. At least 16 people were killed and 124 others were wounded in the attacks.

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