A propane tank being used by workers in an adjoining storefront that formerly housed the Kim-Bridge card and flower shop apparently was to blame for the incident at the TLC Plus III on Market Street, Police Chief Robert Kugler said.
An ambulance was dispatched as a precaution but wasn't needed, Kugler said.
"The contractor was using a propane-fueled concrete cutter," the chief said. "Fumes swept through building into the daycare center.
"CO is a silent killer," he added. "CO detectors are required in that environment. I'm glad they were working."
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