School administrators in Downey warned parents Wednesday of a possible scam involving summer job advertisements that, according to them, are "often fronts for human trafficking."

In a voicemail to parents Wednesday night, the Downey Unified School District informed parents of a recent influx of allegedly fake job posters targeted at teens.

"(The posters) are often fronts for human trafficking," the school district official said in the voicemail.

One student told NBC4 he was hired for a job but quit after feeling uneasy about the work.

The job advertisements were posted on telephone poles near schools and specifically offered teenagers a job paying $150 to $400 a week with free transportation, according to the voicemail.

School district officials are asking parents and students to help spread the word about the allegedly fake job front, in hopes of keeping the community safe. There are currently no known victims of human trafficking because of the posters.

The Downey Police department has removed more than 200 flyers in the last few weeks for violating city code.

Downey Police would not confirm the district’s claim about human trafficking.