MIDDLETOWN, R.I. — Rhode Island State Police say a man has been charged with operating a butane hash oil lab in a residential area.

Col. Ann Assumpico says authorities on Wednesday seized 71 grams of butane hash oil, three pounds of marijuana, a pressure cooker and other items at the Middletown home of 27-year-old Steven Sousa.

Butane hash oil is used to extract THC from marijuana.

Sousa is expected to be arraigned Wednesday afternoon on drug possession and manufacturing charges. It’s unclear if he has an attorney.