Four men now face charge on federal heroin conspiracy after a raid in Antioch.
Officials executed a raid in the south Nashville community and arrested 57-year-old Armando Morales, 27-year-old Raul Cedillo-Pena, 20-year-old Josue Castro and 34-year-old Ines Lopez-Pena.
Undercover detectives and Metro police worked jointly to identify the people responsible for supplying heroin to a source of buyers.
Those buyers were discovered to place phone orders to an address in the 100 block of Ocala Drive.
Deliveries were made to customers in public places such as commercial parking lots around Edmondson Pike and Old Hickory Boulevard, as well as other locations around Nashville.
On Friday, authorities executed a raid at the home on Ocala Drive and seized four pounds of heroin, $7,000 in cash, six cars, one gun and $15,000 worth of assorted merchandise.
All of the men arrested face felony heroin conspiracy charges.
Anyone who suspects heroin or other drug activity in their neighborhoods are urged to contact police's hotline at 615-244-DOPE. Callers can remain anonymous.