There was an explosion near a pub in the northern Japanese city of Sapporo on Sunday night leaving at least 42 people injured, one of the victims was critically injured, said Hokkaido Police public relations officer Ryohei Kashihara.
A subsequent fire caused one building to collapse. Residents reported smelling gas after the explosion and seeing broken windows in the area, public service broadcaster NHK reported.
The cause of the explosion, which occurred around 8:30 p.m. local time, is unknown, and emergency services continue to investigate.
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