Several explosions thundered in Odessa, Mayor Gennady Trukhanov said in his telegram channel.
He urged residents to stay in shelters. An air alert has been declared in the city.
The alarm in Kiev was reported by the Kiev City Military Administration. The signals are also heard in Kiev, Chernihiv, Mykolaiv, Sumy, Cherkasy, Kirovograd regions.
The Russian Defense Ministry emphasizes that strikes are carried out only on military and energy facilities of Ukraine and related infrastructure.