The fire broke out at about 13:00 on Saturday.
An explosion in a ward of Chernivtsi-based hospital No. 1, where COVID-19 patients are treated, has left one person dead and two more injured.
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In particular, one person was injured, while another one suffered from carbon monoxide poisoning.
An old man died in the fire, the official said.
"We still cannot say anything about the causes of the fire. It will be established by the bodies of inquiry," he added.