MANTECA (CBS13) — Two people were hurt when flames tore through the original Manteca City Hall Tuesday.

The historic building at 123 Sycamore Avenue is now home to several small businesses. Crews say a tenant accidentally started the fire and sustained moderate burns. That person was treated at a local hospital.

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It took crews about an hour to douse the flames. The fire department says crews found fire on the second floor of the two-story building which escalated and burned through the roof.

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One firefighter suffered a sprained ankle during the call and was taken to the hospital for treatment, officials said.

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Firefighters say the cause of the fire is not suspicious and witnesses are cooperating with the investigation.