More than 1,000 people were inside a mall in the central Ukrainian city of Kremenchuk when a Russian missile was fired at the building, Ukrainian President Volodymyr Zelenskyy said.
"The number of victims is impossible to imagine," he added.
On Telegram, alongside a video, Zelenskyy said the site had “no danger to the Russian army. No strategic value. Only the attempt of people to live a normal life.”
The mall remained on fire and emergency services were on the scene, he said.