CANTON, Ohio (AP) -- Authorities in the northeast Ohio say a roughly 20-block area of Canton was evacuated as a fire in a closed factory released potentially harmful sulfur dioxide.
Responders trained to handle hazardous materials were called to the former packaging business, where firefighters continued dousing the smoking building Tuesday.
Firefighters initially responded to the blaze Monday afternoon. Battalion Chief Tom Garra says area residents were evacuated because air monitors detected sulfur dioxide at levels that weren't life-threatening but posed a health hazard. Those levels had dropped by early Tuesday.
Five schools near the evacuated area canceled Tuesday classes.
Garra says white smoke released from the initial blaze indicated a possible chemical reaction or leak.
The site had been used by Convoy Containers. Its website indicates it went out of business in 2011.