Romeoville police said the trailer was stolen at some point between July 26 and the afternoon of July 30 from National Trailer Repair in Romeoville, the Joliet News-Herald reported Friday.
"The trailer, which is valued at about $14,000, contained a $24,000 load of Frosted Flakes," Assistant Police Chief Steve Lucchesi said.
Lucchesi said police do not yet have any leads in the case.
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