Russia earlier on Saturday hit Kiev, the capital of Ukraine with drones and missiles, triggering fires that swept debris throughout the city and injured at least eight people.
Witnesses from Reuters saw and heard the continuous wave of drones flying over Kiev, and a series of explosions struck the city.
Kiev Mayor Vitali Klitschko said two residents need hospital treatment and that the air defense department is in action.
Images posted online show smoke rolling from the top of an apartment as first responders train water on it. The orange-red light illuminates the city as the smoke flutters across the horizon.
Crichico said debris from a drone hit the top floor of an apartment building in the Solomyanskyi district on the west bank of the city's Dnipro River. An apartment building and a non-residential building in the area are both in the fire.
Timur Tkachenko, head of military administration at Kiev, said a fire broke out on two floors of an apartment building in the Dniprovskyi district of the opposite bank.
Officials also reported a fire broke out in Oberon in the northern suburb of the city and fragments fell down at a shopping center in the same area. They said drone debris hit the ground in many other widely separated communities.
The air alarm remains more than two hours after its first announcement.
A few days of Ukrainian drone attacks (about 800 attacks) were carried out on targets within Russia (including Moscow) and a night strike took place for several days.
Russia and Ukraine released 390 prisoners on Friday, which is expected to be the biggest prisoner swap in the war so far. It is expected to be released in the next few days. The agreement to exchange prisoners was a two-hour conversation last week between the two sides in Istanbul, Turkey.
Russian Foreign Minister Sergei Lavrov vowed on Friday to respond to the attacks.
Russia and Ukraine are increasingly turning to targets along the frontline and beyond to attack targets.
The two countries have been in full swing war since Russia began its full-scale invasion of its neighbors in February 2022.
