Around 60 people were killed after a bomb attack hit a school in East Ukraine, according to President Volodymyr Zelensky.
The bomb attack brought down the building which caught fire and it took firefighters three hours to extinguish the blaze, according to the governor, writing on telegram.
Earlier, the governor of Luhansk region, Serhiy Haidai, said 90 people had been sheltering in the building in Bilohorivka, and 30 were rescued.
Mr. Haidai said a Russian plane had dropped the bomb on Saturday. Russia has not commented.
Luhansk has seen fierce combat as Russian troops and separatist fighters seek to surround government forces.
The final death toll would only be known when the rubble had been cleared.
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