Russian butchery in occupied areas is likely to be even worse than war crimes that have already been uncovered, experts have warned.
Vladimir Putin's forces have been accused of genocide after evidence of summary executions, torture and rape was found in areas formerly under their control.
Harrowing images from Bucha, on the outskirts of capital Kyiv, show bodies piled up in the street, with witnesses saying many appeared to have been shot while their hands were bound behind their backs.
