Warning that electricity outages could last anywhere from several hours to several days, the network said that “resilience and courage are what we need this winter.” Ukraine: Civilians should leave liberated areas this winter Aid sought for Moldova, hit hard by war in next-door Ukraine Shells hit near nuclear plant; Blackouts roll across Ukraine Ukraine says will look into alleged prisoner shooting video Kyiv Mayor Vitali Klitschko, too, stressed the need to be ready and resilient in the face of a potential blackout: “Worst case scenario.Actually, I don’t like to talk about that, but I have to be prepared if we (do not) have electricity, blackout, no water, no heating, no services and no communication,” Klitschko told the AP on Friday.“The restoration of networks and technical supply capabilities, the de-mining of power transmission lines, repairs — everything goes on round the clock,” Zelenskyy said in his nightly address.A sharp cold snap and the first snow have significantly complicated the situation in Kyiv, where temperatures are often below freezing in winter months.We have medication.” Many residents in Kyiv have begun to leave boxes of food, flashlights and power banks in elevators, in case anyone gets stuck in one for a long time."