Explosions were reported in Kharkiv, Dnipro, and other cities the morning of Dec. 25, as Russia launched a mass aerial attack across Ukraine. At least two civilians were hospitalized.

Kharkiv Mayor Igor Terekhov said in a statement that he believed ballistic missiles were used to attack the city.

Russian air defenses intercepted multiple drones, but reports indicated that the strategic Millerovo air base sustained damage.