At dawn on April 21, a series of explosions were heard in Mykolaiv and Kherson during an air alert.

Source: Mykolaiv Mayor Oleksandr Senkevych, public broadcaster "Suspilne. Kherson", "Suspilne. Cherkasy"

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

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

Update: Later, "Suspilne" confirmed reports of explosions in Kherson.

Additionally, media outlets reported explosions in Cherkasy.