Authorities in Wisconsin say they’ve busted an alleged large-scale operation making tens of thousands of bootleg THC-containing vape products. Authorities seized over $1.5 million worth of THC product from a single residence late last week.

In a press conference Wednesday, the Kenosha County Sheriff’s Department announced that local authorities made the bust after serving “knock and announce” search warrants at two locations in the county. At one property, police seized approximately 31,200 vape cartridges, each filled with 1 gram of oil containing tetrahydrocannabinol (aka THC, the psycho-active ingredient in cannabis). They also seized 98,000 unfilled vape cartridges, 57 Mason jars filled with approximately 1,616 ounces of refined liquid THC, and approximately eighteen pounds of marijuana.

Police are holding Tyler T. Huffhines, 20, on several charges, including possession with intent to manufacture, distribute, or deliver more than 10,000 grams of cannabis product. Authorities also arrested his brother, Jacob D. Huffhines, 23, for cocaine and firearm possession.