A Russian missile strike hit a supermarket in the Ukrainian town of Kostiantynivka in the front-line Donetsk region on Friday, killing at least ten people and injuring 35 others, Ukrainian officials said.

The strike caused a fire that had been put out, the interior minister said. Heavy black smoke clouds rising from the destroyed building could be seen in the images and videos posted by officials.

"Russian terrorists hit an ordinary supermarket and a post office. There are people under the rubble," President Volodymyr Zelenskyy said.

Emergency services continued working out the rubble looking for survivors, he added. Regional Governor Vadym Filashkin initially said Russia used artillery but later said the attack was from an X-38 air-to-surface missile.