An observant parent in Pennsylvania made a disturbing discovery after taking a bite from their child's Halloween candy, alerting police to a sewing needle planted inside the sugary treat.

According to the Silver Spring Township Police Department, 7:03 p.m. Tuesday — Halloween — officers were dispatched to the first block of Pine Hill Avenue for needles found in candy distributed during the night's festivities. 

Authorities found needles in three pieces of candy in Cumberland County

One needle was found after a parent bit into a piece candy after they picked it up off the ground, police say. They were not injured, police said.

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A needle sticking out of a watermelon flavored AirHead

Police are urging trick-or-treaters to check their candy before eating it after a parent found a needle in Halloween candy. (Silver Spring Township Police Department)

Silver Spring Township Police Chief Chris Raubenstine said that authorities are investigating whether that sewing needle-filled candy was dropped on the ground accidentally or placed on the ground intentionally. 

"We don’t know if it fell, or if it was placed there intentionally with the hopes that somebody would pick it up," Raubenstine told local outlet, WHTM

AirHead candy with needle in it

Trick-or-treaters in Cumberland County are being asked to check their bags after police say there were pieces of candy that had needles in them. (Silver Spring Township Police Department)

The police chief said that this was his first time finding needles in Halloween candy.

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"We all hear about these things every year, but this is, in my 30 years, the first time that we’ve ever actually had it occur," Raubenstine said.

A needle that was found in candy

Three pieces of candy that had sewing needles in them, that police say. (Silver Spring Township Police Department)

Police recommended for adults to check all candy before allowing kids to eat it.

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Authorities asked anyone with information about who may be involved with the tampered candy to call Silver Spring Township Police Department at 717-697-0607.