satellite images appear to show mass graves outside of mariupol. an adviser to the mayor says they show mass graves. but cnn cannot independently verify those claims. and the discovery happening as the heavy fighting continues in the port city. an estimated 100,000 people, both soldiers and civilians, trapped amid the relentless russian onslaught. one small boy praying for a miracle. . translator: i want toss the sun so when our houses are rebuilt, we can live in peace, so we can live in ukraine, because this is our native home. another humanitarian corridor opening in mariupol as civilians try to escape the fighting. russia capturing dozens of small towns in the east, but uk officials say russians have not made any major gains in the last 24 hours. russia also revealing its mission for the invasion, top military officials say they plan to take full control over southern ukraine and the eastern donbas region. let s bring in scott mcclain who is in lviv. what details ar
The successor to the kgb, that tracked and followed navalny for years before the poisoning. is it your contention that vladimir putin must have been aware of this? of course. 100%. reporter: cnn s clarissa ward and her team confronted a member of the fsb s toxin team at his apartment on the outskirts of moscow. clarissa ward. cnn. my name is clarissa ward. i work for cnn. can i ask you a couple of questions? was it your team that poisoned navalny, please? reporter: five months after his poisoning, navalny returned to russia, knowing what awaited him. i will go back. i m russian politician, i belong to this country. i would never give putin such a gift. reporter: he was arrested on arrival. in prison, he started a hunger strike. he was initially sentenced to two and a half years for
Treatment. a joint investigation by cnn uncovered a team of agents that had tracked and followed navalny for years before the poisoning. is it your contention that vladimir putin must have been aware of this? of course. 100%. reporter: cnn s clarissa ward and her team confronted a member of tsb s toxin team. [ speaking russian ] my name is clarissa ward. i work for cnn. can i ask you a couple of questions? [ speaking russian ] was it your team that poisoned navalny, please? reporter: five months after his poisoning, nalny returned to russia knowing what awaited him. i will go back i m russian, i belong to this country. i would never give putin such a gift. reporter: he was arrested on arrival. in prison, he started a hunger
Flown to germany for treatment. a joint investigation with cnn and joint investigation group uncovered the team of agents from fsb, successor to kgb that tracked navalny for years until the poisoning. is it your contention that vladimir putin must have been aware of this? of course, 100%. reporter: cnn s clarissa ward and her team confronted a member of the toxin team at his apartment on the outskirts of moscow. reporter: my name s clarissa ward, i work for cnn, can i ask you a couple of questions? was it your team that poisoned navalny, please? reporter: five months after his poisoning, navalny returned to russia, knowing what awaited him. i will go back, because i m russian politician, i belong to this country. reporter: he was arrested on
Apartment on the outskirts of moscow. clarissa ward. my name is clarissa ward, i work for cnn. can i ask you a couple of questions? navalny, was it your team that poisoned navalny, please? reporter: five months after his poisoning, navalny returned to russia, knowing what awaited him. i will go back because i m russian politician, i belong to this country. i would never give putin such a gift. reporter: he was arrested on arrival and in prison he started a hunger strike. he was initially sentenced to two and a half years for violating his probation, then another nine were added for fraud, and contempt of court cha charges. alex marquardt, cnn, washington. the sundance award winning cnn film navalny airs sunday night at 9:00 eastern here on cnn. so we do have some good news