Vereshchuk said one corridor for the evacuation of Mariupol residents and delivery of humanitarian aid to Berdyansk, one route for humanitarian aid delivery to and evacuation from Melitopol, and one for a column of people in personal vehicles from Enerhodar to Zaporizhzhia.

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"The convoys of buses and trucks with humanitarian aid have already left Zaporizhzhia," she said in a video message on Wednesday.

Vereshchuk said the Russian delegation to talks on Tuesday between Russian and Ukrainian teams in Istanbul received proposals from the Ukrainian side to organize evacuation corridors for some of the regions most heavily affected by fighting, including Kharkiv, Kyiv, Kherson, Chernihiv, Sumy, Zaporizhzhia, Donetsk, Luhansk and Mykolaiv oblasts.