Columbus firefighters are on the scene of a fire at the Swift Denim factory on Sixth Avenue.
The call came into the 911 center about 4:45 p.m.
A firefighter on the scene said as of 5 p.m. the blaze was not under control. There is still no word as to how the fire began.
Mike Chancey works across the street from the mill. He told reporters he heard demolition crews setting off explosions in the building earlier in the day. There were about a dozen blasts, he said.
"It was just rocking," Chancey said.
A second man said he also heard explosions coming from the mill this morning. Jason Rosinbaum said the blasts were strong enough that workers in the area could feel the concussion.
Chancey and Rosinbaum both said the explosions stopped two or three hours before the fire was reported.
Emergency workers have blocked off Sixth Avenue between 14th and Linwood Blvd. and 15th Street at Fifth Avenue.
The mill is located near Linwood Cemetery.
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