Four people were arrested and more than $20,000 worth of drugs were seized after an investigation by the Forest County Sheriff's Department.
Deputies say a suspicious package delivered to a home in Nashville helped investigators. A search warrant signed on October 18 was used to get inside.
Prescription narcotics were found, as well as marijuana, and mushrooms. The three suspects are identified as Carly Allred, 22; Curtis Allred, 53; and Kenneth Murphy, 25; and Lisa Allred, 49.
Authorities say the investigation is on-going and more arrests can be expected. Carly Allred and Kenneth Murphy remain behind bars.
The arrested suspects have no charges filed yet.