At least one person has died in Kyiv and three were injured when falling debris from a destroyed Russian drone hit a high-rise apartment building on Tuesday, officials in the capital said.
The attack on Kyiv was the third in 24 hours, following a rare daytime attack on Monday that sent people running for shelter.
The Kyiv military administration said that two upper floors of the building were destroyed and there could still be people under the rubble.
At least one person died, one was hospitalised and two others were injured, mayor Vitali Klitschko said.
The 27-year-old woman was hospitalised with moderate injuries due to falling debris in a southern area of Kyiv, Klitschko said.
The mayor said that a multi-storey building in the district of Holosiivskyi was also damaged.
London's military administration said the nighttime attack was carried out using drones. In a statement, the administration said that the enemy has already carried out three attacks in the last 24 hours. Moreover, the enemy is always changing weapons for attack, after the combined missile-drone and then ballistic, the aggressor used only UAVs. Falling debris caused a fire at a house in the city's southern Darnytskyi district, and three cars in the centrally located Pechersky district also burned.
The air raid sirens sounded in Kyiv and in the Mykolayiv region, Kirovohrad and Cherkasy regions, as well as the southern Kherson region.
In May, Russia has repeatedly attacked the Ukrainian capital using a combination of drones and missiles, mostly at night, in an apparent attempt to weaken Ukrainians' resolve to stand up to the government after more than 15 months of war.
The head of Kyiv's military administration said on Monday that as well as keeping Ukrainian civilians in a state of deep psychological tension Russia's leaders were seeking to exhaust Ukraine's air defences with the relentless spate of attacks.
Ukrainian officials are worried their anti-aircraft defences from the Soviet era are running out of ammunition and that Western systems like the US Patriot are not arriving in sufficient quantities to fill the gap.
On Monday, Ukraine's president, Volodymyr Zelenskiy, commended the US-supplied Patriot anti-missile defences.
If Patriots, in the hands of Ukrainians, ensure a 100% interception rate of any Russian missile, terror will be defeated, Zelenskiy said.
Tuesday's strikes were Russia's 17th air assault on the capital this month, and came after the city was attacked twice on Monday. People who had become used to a string of nighttime attacks ran to Kyiv s metro stations and shelters after a succession of loud bangs as incoming missiles were intercepted and bursts of smoke from air defences dotted the clear morning sky.
Zelenskiy posted video of what he said was frightened schoolchildren running and crying down a Kyiv street to a bomb shelter to the sound of air raid sirens. This is what an ordinary weekday looks like, said Zelenskiy.