ABINGDON, Va. — A California man has been sentenced to 18 years in prison, after pleading guilty to federal charges related to a fentanyl distribution conspiracy in southwestern Virginia.

Roberto Contreras, 24, of Buena Park, California, previously pleaded guilty to conspiracy to distribute fentanyl and possessing a firearm in a drug trafficking crime.

When police raided his home in March of last year, they seized more than 1,600 fentanyl pills, along with 7,000 Xanax pills, 3,000 Adderall pills, 242 grams of cocaine, more than $31,000 in cash and five guns.

Prosecutors say Contreras was responsible for providing pressed fentanyl pills to a local co-conspirator, Marco Orozco, for a period of three years, selling him between 10,000 and 30,000 pills at a time, multiple times a week. Orozco would then provide the pills to other dealers, who sold them through social media.

Orozco has also pleaded guilty in the case. He will be sentenced later this month.

In addition to his prison sentence, Contreras was also ordered to forfeit the cash and weapons that were seized during his arrest.