Luhansk regional Governor Serhiy Gaidai said at least two people have been killed in the bombing of a school in the village of Bilohorivka.
Some 60 people who remained under debris are feared dead while 30 have been rescued, Gaidai said in a Telegram post.
"The fire was extinguished after nearly four hours, then the rubble was cleared, and, unfortunately, the bodies of two people were found," Gaidai said.
The Luhansk region's governor said Russia dropped a bomb on Saturday afternoon on a school were about 90 people were taking shelter.