Russian overnight attacks damaged an enterprise in Sumy region, injuring at least 9 people, and hit an industrial facility in Poltava region, local authorities said on Friday.
An airstrike on the northeastern city of Sumy caused a fire, prompting regional authorities to ask residents to stay inside and close the windows.
A drone attack hit an industrial facility in Poltava without causing any casualties, regional governor Filip Pronin said.
The Ukrainian air force said it shot down 12 out of 18 Russia-launched drones overnight over five Ukrainian regions. Four more drones fell over the Ukrainian territory.
Russia also used an Iskander-M missile during the attack, the air force added.