Ukraine's president on Tuesday urged Washington to recognize Russia as a state sponsor of terrorism after a missile strike on a crowded shopping mall in the central Ukrainian city of Kremenchuk killed at least 18 people.

"18 killed… Sincere condolences to family and friends. Rescuers continue to work," said Dmytro Lunin, head of the Poltava Regional Military Administration, on Telegram Tuesday.

The report raised the toll from earlier in the morning, when emergency services chief Sergiy Kruk said 16 had been killed and 59 wounded, 25 of them hospitalized.