Hryhorov, writing on Telegram, initially said three people had died but later corrected the death toll to two.
He said a fire had broken out, and photos posted online by the governor showed a badly damaged building and rubble strewn on the ground.
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Four people were in serious condition, Hryhorov said. Four of the injured were teenagers, the national police said separately on Telegram.
Across the wider region, five people were killed and 24 injured, the police added.
Sumy and the surrounding region along the Russian border have long been subject to heavy attacks and Moscow has said it wants to establish a buffer zone in the area.





















