Explosions rocked Dnepropetrovsk, Kryvyi Rih, Pavlograd and Nikolaev on Saturday night, Ukrainian media reported.
Pavlograd was the first city where explosions were heard amid air raid sirens in the Dnepropetrovsk region, Ukrainian Channel 24 reported.
Shortly after, several series of explosions were heard in Dnepropetrovsk, the Telegram channel "Public" reported.
Explosions were also reported in Kryvyi Rih and Nikolaev.