evidence: Ukrainian dam breach: What’s happening and what’s at stake [...] The head of national hydroelectric company Ukrhydroenergo, Ihor Syrota, said authorities were holding water in upstream reservoirs to compensate in part for the loss of the dam. [...] Ukraine’s Defense Ministry tweeted a video showing a drone — presumably one of its own — dropping a bottle of water to a woman in a rooftop window in Oleshky. "The Ukrainian military will never leave civilians behind," it said.