The Ukrainian president says any future tribunal must hold Russia accountable for the attack on Kramatorsk train station, mass killings in Bucha, and other atrocities.
The war in Ukraine is now well into its sixth week, and taking on a new dimension with growing evidence of human rights atrocities by Russian troops as they retreated from the Kyiv region and other parts of the north.
Despite Moscow's blanket denials, horrific discoveries of civilian murders and other barbaric acts are coming to light.
As Vladimir Putin's forces concentrate their offensive on eastern Ukraine, NATO and the EU have promised Kyiv more weapons, and Western nations are tightening sanctions against Moscow.
Follow the updates from Saturday as they unfolded in our blog below, and watch the latest live TV coverage in the video player above.