Explosions thundered in Odessa and Chernihiv. This was reported on March 15 by the Ukrainian edition of Strana.
"Explosions in Odessa. ...They are reporting an explosion in Chernihiv," the telegram channel of the publication says.
According to the online map of the Ukrainian Ministry of Digital Transformation, an air alert has been announced in Kyiv, Chernihiv, Sumy, Poltava, Cherkasy, Kirovohrad, Kharkiv and Dnipropetrovsk regions. In the Odessa region, the air alert was canceled.
On the same day, Odessa Mayor Gennady Trukhanov reported explosions in the city. According to the online map, an air alert was then announced in the Odessa region.

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