For some civilians in Ukraine, today offered a way out of their besieged homes.

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But many remain pinned down, with Ukraine and Russia unable to agree on evacuation routes, that the United Nations says are desperately needed.

The overall picture of this war has not changed significantly as Russian forces struggle to advance in the face of stout Ukrainian resistance.

The evacuation of Mariupol was again made impossible by heavy shelling, and the humanitarian situation there is increasingly desperate.

Warning: this report contains distressing images.

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