As Halloween approaches, authorities are warning parents to check their children’s Halloween candy for anything out of the normal or suspicious as thousands of fentanyl pills were found hidden in candy boxes.

The Los Angeles County Sheriff’s Office seized the dangerous pills on Wednesday morning at the Los Angeles International Airport, when a person attempted to go through security with the drugs disguised in a variety of candy boxes.

In a statement, authorities detailed that the pills were discovered inside boxes of “Sweetarts”, “Skittles”, and “Whoppers.” All contents in the candy boxes were fentanyl pills and not candy.

Authorities said they confiscated approximately 12,000 fentanyl pills.

The sheriff’s office reported that the suspect ran off prior to the inspection of the candy boxes however was eventually detained.

If you find anything in candy boxes that you feel could be narcotics, do not touch it. Call your local law enforcement immediately.