A large-scale Russian drone attack on Ukraine injured at least eight people and damaged buildings including a paediatric clinic in Kyiv, Ukrainian officials said.
Around 13 buildings were also hit in the southern Odesa region overnight, and seven people were injured.
Of 132 drones launched against the country overnight, Ukraine downed 88 drones, while 41 were "lost", likely due to electronic warfare, and one returned to Russian territory.
In Kyiv, fragments from downed Russian drones struck buildings in two Kyiv districts and injured one person late on Thursday, officials said.
Emergency services, in a post on the Telegram messaging app, showed pictures of rubble strewn about inside and outside a pediatric clinic in Kyiv's Dniprovskyi district on the east bank of the Dnipro River.
A security guard at the facility was taken to hospital. Adjacent buildings also suffered damage.
Mayor Vitali Klitschko said drone fragments had struck an infrastructure site in the Sviatoshynskyi district on the west bank of the river.
Kyiv regional governor Ruslan Kravchenko reported minor damage to a private residence and another building without any casualties.
Russia has stepped up its nightly drone attacks on Ukrainian cities as it continues to push along the eastern frontline, making some of its largest monthly territorial gains since 2022.
It launched a record-high number of 188 drones against the country on Tuesday before staging a large-scale attack on Ukraine's power grid on Thursday.
Russian president Vladimir Putin said on Thursday Moscow had targeted Ukrainian power infrastructure in response to Ukraine's strikes on Russian territory with US medium-range ATACMS missiles.
But Ukrainian president Volodymyr Zelensky accused Russia of a "despicable escalation", saying it had used cruise missiles with cluster munitions.
US president Joe Biden condemned the Russian attack as "outrageous," saying in a statement that it serves as a "another reminder of the urgency and importance of supporting the Ukrainian people in their defense against Russian aggression."
Over a million people lost power in the immediate aftermath of the strikes, and millions more had their existing schedule of rolling power cuts intensified.