Horrific scenes of people being treated in darkness as others dig away at rubble have been shown inside a shelled makeshift hospital in a Mariupol steel works.
A desperate battle has been raging for weeks in the strategic southern Ukrainian city of Mariupol where fighters are refusing to surrender and Russian shells have reduced it to ruins.
While Russia has claimed most of the city, Ukrainians are still holding onto the massive Azovstal steelworks.
