CNN’s Sam Kiley reports from the Luhansk region of eastern Ukraine, where an official says a school in Bilohorivka, used as a refuge for civilians, was hit by a Russian airstrike that killed dozens.

CNN’s Sam Kiley reports from the Luhansk region of eastern Ukraine, where an official says a school in Bilohorivka, used as a refuge for civilians, was hit by a Russian airstrike that killed dozens.