translator: only if ukraine will stand, will they live. if the russian invaders succeed in realizing their plan, at least in part, they will still have enough artillery and aircraft to destroy the entire donbas just as they destroyed mariupol. the city which is one of the most developed in the region is simply a russian concentration camp in the middle of ruins. well, the situation also growing evermore dire, of course, for mariupol s last defenders holed up. president zelenskyy referencing there. a ukrainian commander inside the plant tells of leentless russian attack and scores of people injured. our jim sciutto has the story for you. reporter: hundreds of civilians, including children, still trapped in a mariupol steel plant tonight after russia blocked ukraine s latest attempt to rescue them. the last military holdout in an embattled cities and official