Ukrainian authorities fear up to 60 people sheltering in a school in Luhansk region may have been killed in a Russian strike on the building. It comes as the World Health Organisation announced it was collecting evident in Ukraine of possible war crimes committed by Russian forces against medical facilities.
Meanwhile the UK's latest intelligence briefing confirms that Russia is sending more senior officers to the front lines to take command decisions, although it's not clear whether this is having any impact to change battlefield strategies.
And the leaders of the G7 group are due to hold a video conference with President Zelenskyy on Sunday.
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Russia's bombing of a school in the eastern Ukrainian village of Bilohorivka killed two people and left 60 in the debris feared dead, the governor of the Luhansk region said on Sunday.
Governor Serhiy Gaidai said Russian forces dropped a bomb on Saturday afternoon on the school where about 90 people were sheltering, causing a fire that engulfed the building.
"The fire was extinguished after nearly four hours, then the rubble was cleared, and, unfortunately, the bodies of two people were found," Gaidai wrote on the Telegram messaging app.
"Thirty people were evacuated from the rubble, seven of whom were injured. Sixty people were likely to have died under the rubble of buildings."
Reuters could not immediately verify the report.
Gaidai wrote on Telegram the "Russian assassins 'fought' with unarmed civilians. The racists dropped an air bomb on a school where almost the entire village was hiding. Everyone who did not have time to evacuate. After hitting the club, the
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