(CBS4) – The U.S. Department of Justice says a drug strike force dismantled a major drug dealing operation which was working in Denver and Aurora. Officials says 30 people were indicted including the so-called drug kingpin who ran the operation.

Officials say Candelaria Vallejo-Gallo is from Mexico and was in the country illegally.

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The investigation began in late 2018. Authorities say they seized about 400 lbs. of methamphetamine, 4 lbs. of cocaine, 5 lbs. of heroin and 15,000 fentanyl pills.

The pills were disguised to look like prescription oxycodone.

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“This criminal enterprise was responsible for poisoning our community and furthering the meth and opioid epidemic, but today our community is safer” said

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Several firearms were also seized.

Of the 30 indicted, 24 were arrested and one is in state custody on a separate charge.

Four of the remaining suspects are in Mexico, and the fifth is on the run in the United States.

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Authorities say there is no immediate threat to their safety.