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Police in Tinley Park are investigating the origin of several fliers touting the Ku Klux Klan that were distributed in the area this week.

They were found on at least five driveways in one particular neighborhood.

One flier read, “you can sleep tonight knowing the Klan is awake!”

Police say the fliers are suspicious, but they don’t believe a crime has been committed.

They also say they have never heard of the organization listed on the fliers, and don’t know if it’s real or a prank.