FBI agents tipped off about a drug shipment on its way to Aberdeen found a motor home stuffed with 31 kilograms of cocaine and heroin, according to documents filed in U.S. District Court. 

A confidential source told authorities in June that a man would be transporting multi-kilogram quantities of drugs from Compton, Calif., to a home in Aberdeen, the FBI said in court records.

On Aug. 6, agents set up surveillance around the residence when a large motor home with Louisiana plates parked on an access road near the home. Inside, agents found 25 kilograms of cocaine and six kilograms of heroin, according to court records. 

The specific locations of the residence and the arrest were not disclosed.

Authorities arrested the driver of the motor home, identified as Edward Kermit Richards III, of Henderson, Nev. He was charged in federal court with possession with intent to distribute more than five kilograms of cocaine, and possession with intent to distribute more than one kilogram of heroin, and is being held in federal detention. 

Richards' court-appointed attorney, Harry McKnett, said it was too early in the process to comment on the allegations.