An operation conducted by local, state, and federal law enforcement has brought down a major methamphetamine distribution network in California.

According to CBS News, Operation Red Reaper was a ten-month investigation that resulted in the arrest of 54 individuals and the seizure of 53 firearms and over 36 pounds of drugs in Kings and Tulare counties, according to California Attorney General Xavier Becerra, U.S. Attorney for the Eastern District of California McGregor Scott, Kings County Sheriff David Robinson, and Hanford Police Chief Parker Sever.

Those arrested are members of the Norteño street gang and the Nuestra Familia prison gang, police say.

Investigators said the gang’s alleged criminal activities included drug trafficking, extortion, murder, robbery, and the manufacture, trafficking, and possession of illegal firearms.