Days after the massacre at a black church in South Carolina, some Americans woke to a vile surprise: KKK fliers with candy on their lawns.

The propaganda—stuffed into plastic baggies with pieces of peppermint and Tootsie Rolls—included a phone number for the Loyal White Knights of the Ku Klux Klan. Planted under the cover of darkness, the fliers were distributed in California, Kansas, Alabama, Mississippi, and Georgia.

It’s not something local police departments are taking lightly, and some have even reached out to the FBI for assistance. The Rockdale County sheriff’s department in Conyers, Georgia, collected more than 80 fliers and is investigating whether anyone can be charged with criminal trespass or littering.

“Whether it was a joke or from an organization doesn’t matter to me,” Sheriff Eric Levett told The Daily Beast. “The fact that it was done during this time is ignorant and cowardly.”