DULUTH  (AP) -- Duluth police have arrested a "person of interest" in a fire that gutted the Peerless Collision Center.

Crews were called early Monday to the two-story building in Duluth's Lincoln Park.

Duluth Assistant Fire Chief Erik Simonson expects the building will be a total loss.

Simonson believes no one was in the building, but crews have not yet completed a thorough search.

Peerless owner Rob Rabold estimates about 30 vehicles were in the building when the fire started. The shop employs six people, including Rabold.

More than two-dozen firefighters fought the blaze in cold weather. Some firefighters fell in the icy conditions but there were no serious injuries.

The cause of the fire is under investigation.

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