Two series of explosions thundered in Odessa, according to the Ukrainian 24 TV channel.
"More explosions in Odessa," the publication says.
Earlier, the media had already reported such incidents in the city. An air raid alarm has been sounding there for several hours.
In response to the attacks of the Ukrainian Armed Forces on civilian targets, Russian troops regularly hit the locations of personnel, equipment and mercenaries, as well as the infrastructure of Ukraine: energy facilities, defense industry, military administration and communications.