A Russian missile strike killed 11 people and injured 10 on Saturday in and around the eastern Ukrainian city of Pokrovsk, the governor of the Ukrainian-controlled part of Donetsk region said.
Five of the dead were children. A U.N. official in Ukraine expressed horror at the incident.
Rescue efforts extended into the night. Pictures posted online by regional governor Vadym Filashkin showed teams sifting through piles of smouldering rubble in the dark as well as a burned-out vehicle.