PLACER COUNTY (CBS13) – A search of a suspicious vehicle in Placer County uncovered a suspected homemade explosive, deputies say.

According to the Placer County Sheriff’s Office, a deputy was out on patrol along Auburn Folsom Road near Camino Oro back early in the morning on March 24 when he noticed a suspicious vehicle. The deputy shined a spotlight on the vehicle and reportedly saw a suspect quickly trying to hide.

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The suspect was contacted and identified as 51-year-old Sacramento resident Yevgeniy Onopkov.

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Deputies say they soon found a realistic-looking gun, an 8.5” knife, ammunition, and a baggie with heroin after searching Onopkov.

Further, deputies say a suspected homemade explosive was also found. An Explosive Ordnance Disposal unit responded and was able to confirm it was indeed an explosive device, the sheriff’s office says.

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Onopkov is now under arrest and is facing numerous charges.