Russian glide bombs and ballistic missiles struck a Ukrainian prison and a medical facility overnight as Russia's relentless strikes on civilian areas killed at least 22 people across the country, officials say.

Russian attacks continued on Tuesday morning, with a drone strike leaving two utility company workers injured in the eastern city of Kostiantynivka. Serhiy Horbunov, head of the city’s Military Administration, called it “cynical aggression by Russian occupiers” against civilian infrastructure.

A Russian airstrike on a prison in a frontline region in southeastern Ukraine has killed 16 people and wounded more than 30 others, according to Ukrainian officials.