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Police received the initial report at midnight Sunday, according to WPVI-TV.

A man told police that sewing-type needles were found inside five wrapped Twix candy bars given to four children from different households as they were trick-or-treating on Halloween.

Police told the station that the man reporting the incident said he saw a Facebook post from an unknown source describing a Snickers candy with needles in it.

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This post lead him to check his children's candy, and he discovered the sewing-type needles in the Twix snack size candy, he said.

Police say it is still unclear whether the source of the tampered candy was the person giving it out, a store or another distribution channel.

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>> Click here to read a Facebook post from the police department