A load of copper worth nearly $600,000 was recovered on Sept. 11 after investigators followed a trail from Illinois to Kentucky and Ohio, wrapping up the initial search only about eight hours after the theft was reported, according to Yahoo News.

The case began when a shipment scheduled to travel from DeKalb, Illinois, to Rock Hill, South Carolina, never made it toward its intended destination. Authorities believe whoever collected the freight had presented themselves as an established trucking company, using genuine business information to make the pickup appear legitimate.

The breakthrough came from location data tied to Schneider National equipment involved in the haul. Rather than heading southeast toward South Carolina, the freight was traced to Prestonsburg, Kentucky, where police found the entire six-pallet copper shipment inside a warehouse. Three people were detained in Kentucky.

Meanwhile, investigators continued following the equipment used to move the load. A Schneider chassis and container were located in Chillicothe, Ohio, while state troopers separately intercepted the tractor associated with the pickup. One additional person was taken into custody in Ohio.

Yahoo reports that the operation involved authorities in Illinois, Kentucky and Ohio, along with Schneider National and CargoNet, which had helped flag the theft. Information about the truck, trailer and driver was quickly distributed among agencies as investigators attempted to follow the shipment across state lines.

Police are now examining whether the incident may overlap with another theft involving Schneider equipment and whether the people or trucking identities involved could be part of a wider cargo-theft operation. So far, authorities have not publicly identified the four people detained or disclosed what charges they may face.

The episode also illustrates how freight theft has evolved beyond simply stealing unattended cargo. Criminals can use authentic company information to appear legitimate long enough to take control of valuable shipments. In this instance, rapid reporting and tracking technology allowed investigators to locate both the cargo and much of the equipment before they could disappear further into the supply chain.