In his daily address, Ukrainian PresidentVolodymyr Zelensky says that "today is a historical day" because Ukraine is "taking back Kherson". "As of now, our defenders are on the outskirts of the city. But special units are already in the city," Zelensky adds. Ukraine had earlier on Friday said its forces were entering the southern city of Kherson after Russia announced its troops had retreated from the only regional capital it has captured after nearly nine months fighting.