Ukraine's president says the "elimination" of the last Ukrainian troops in the besieged port by Russian forces "would put an end to all peace negotiations" with Moscow.
Saturday was day 52 of the war in Ukraine. Russian forces are expected to begin a new big offensive in the east of the country after their retreat from the Kyiv region and other parts of the country revealed growing evidence of human rights atrocities.
Despite Moscow's blanket denials, horrific discoveries of civilian murders, torture and other barbaric acts continue coming to light, with Ukrainian authorities claiming tens of thousands of civilian casualties in Mariupol alone.
Ukraine has continued to call for tighter Western nations against Moscow and for more weapons to repel Putin's forces.
Click here for Sunday's latest updates on the war.
Follow Saturday's events as they unfolded in our blog below, and watch our report in the video player above.
For a summary of Friday's developments, click here.