Ukraine thwarts Russian advances; fight rages for Mariupol

European leaders and the United Nations human rights chief condemned the bloodshed, some of them also branding it genocide.

Its forces seized the Chernobyl site in the opening stages of the Feb. 24 invasion, raising fears that they would cause damage or disruption that could spread radiation.

The shelling further tempered optimism about possible progress in talks aimed at ending the punishing war.