A Ukrainian fighter holed up in a vast steel works in the southern city of Mariupol accused Russian forces of breaking a promise to allow a ceasefire on Thursday so that civilians could be evacuated.
Captain Sviatoslav Palamar, a deputy commander of Ukraine's Azov Regiment, posted a video online which purported to be shot in the Azovstal steel works where Mariupol's last defenders are holding out with an estimated 200 civilians.
