An overnight Russian drone attack on a petrol station in Ukraine's second city Kharkiv killed seven people, including three children, local authorities said Saturday.
Fuel from the petrol station quickly spread through the neighbouring street, burning some residents alive and injuring others.
"In five minutes we had a river of fire. We had to run away from home, just run away," said Oleskandr Lagutin, who was injured in the attack.
Local authorities said the fire killed a couple and a family of five.
"My mother-in-law called and said it was burning," said Natalia, a relative of the deceased couple.
"She called back and started screaming that it had spread to the house. We heard the last screams and that was it, she didn't get in touch anymore," she said.
The Kharkiv regional governor Oleg Synegubov said the family included the parents and their seven-year-old, four-year-old and seven-month-old boys.
The woman and boys had sought shelter in the bathroom while the man's body was found in a passage of the house, he said.
"These children had not yet seen life, but were killed as a result of Russian madness," Ukrainian President Volodymyr Zelensky said.
He sent his condolences to all the victims of the attack.
"Our anger is absolute. These people will pay," presidential aide Andriy Yermak added.
About 3,800 tons of fuel were stored in the oil depot that was hit, Bolvinov said.
At least 50 people were evacuated, local authorities said.
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