FRESNO (AP) — Undercover officers in Central California say they made a drug bust valued at nearly $7 million on the streets, seizing just a few pounds of a synthetic heroin.

Fresno County Sheriff’s spokesman Tony Botti said Friday that officers seized 4.4 pounds of the drugs. The undercover officers arrested a man who agreed to make the delivery from Los Angeles.

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Botti says that the officers made the traffic stop on Highway 99 just outside Fresno.

They found two packages stashed in a secret compartment containing a mixture that included fentanyl.

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Investigators say that a small amount of the drugs can be cut 100 times, giving the cache a street value of $6.8 million.

Botti says that officers handling it wore hazardous-material suits because the potent drugs can be fatal if inhaled or touched.

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