KYIV - A Russian missile strike hit a crowded shopping centre in the central Ukrainian city of Kremenchuk on Monday, President Volodymyr Zelenskiy said.

He said more than 1,000 people were in the shopping centre at the time of the attack. He gave no details of casualties but said: "It is impossible to even imagine the number of victims."

"It's useless to hope for decency and humanity from Russia," Zelenskiy wrote on Telegram.

City mayor Vitaliy Meletskiy said the strike had caused deaths and injuries, but gave no figures.

Kremenchuk, an industrial city of 217,000 before Russia's Feb. 24 invasion of Ukraine, is the site of Ukraine's biggest oil refinery.

(Reporting by Pavel Polityuk and Max Hunder, Writing by Tom Balmforth, Editing by Timothy Heritage)