At dawn on April 21, explosions were reported in Mykolaiv and Kherson during the declared air alert.

Sources: Mykolaiv's mayor Oleksandr Senkevych, media outlet "Suspilne. Kherson", "Suspilne. Cherkasy".

Senkevych's statement: "Explosions were heard in Mykolaiv".

Details: Prior to this, the Air Forces warned of missile threats to the southern regions.

Update: Later, "Susplivne" reported explosions in Kherson.

Media also reported explosions in Cherkasy.