Police in Ukraine say Russian missiles hit a densely populated area of the eastern Ukrainian city of Kostyantynivka on Sunday, killing six people and injuring eight others.
There was a large crater in a yard of a house and buildings were destroyed. All the windows in two 14-storey blocks of flats were shattered.
Donetsk regional police said there had been six strikes involving S-300 and Uragan missiles in a "massive attack" just after 10 am local time.
They say the blasts hit "16 apartment buildings, 8 private residences, a kindergarten, an administrative building, three cars and a gas pipeline".
Kostyantynivka is around 27km from the city of Bakhmut, where the war's heaviest fighting is continuing.