Russia says Ukraine hit Donetsk university with cluster shells.Russia says Ukraine hit Donetsk university with cluster shells.
"The Whole Roof is on Fire," says Russia-installed mayor of Donetsk.
Emergency responders were forced to employ substantial resources to fight the blaze.
Firefighters extinguish a fire in the university building in Donetsk, Russian-controlled Ukraine.
A firefighter cuts a fence outside the burning university building.
Amid the chaos and devastation, the origin of the shelling remains a subject of contention.