The Los Angeles Police Department (LAPD) discovered an “elaborate underground illicit drug lab” Wednesday on Hiawatha Street in Granada Hills, California, according to a member of the agency.

Activity at the home had seemed suspicious ever since the new owner bought the property, neighbors told ABC7. The LAPD allegedly identified a marijuana-growing operation when they first arrived at the house. The police then came back to the residence with a search warrant and subsequently discovered the lab, the outlet reported.

Police found ecstasy, hash oil, date-rape drugs, fentanyl and mushrooms at the site, according to ABC7. Photos of the scene show an opening in the floor with a ladder that leads down into the lab, CBS News reported.

The LAPD proceeded to arrest a man and a woman believed to be connected to the operation, according to ABC7.

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