Record Methamphetamine Seizure in South Dakota

A man undetermined by authorities to be a non-citizen was apprehended in South Dakota for reportedly transporting a massive quantity of methamphetamine. During a routine traffic stop on Interstate 90 near Sturgis, law enforcement discovered approximately 207 pounds of crystal meth, an amount comparable to the weight of an average adult black bear.

This seizure represents the largest single drug bust in the history of the South Dakota Highway Patrol. The suspect was found with drugs valued at about $12 million on the street, which authorities recovered from his vehicle.

The driver, not identified by name, was taken into custody and is now involved in immigration proceedings, with his country of origin and detention location undisclosed. This operation was part of “Operation Prairie Thunder,” a collaborative effort allowing law enforcement agencies to assist Immigration and Customs Enforcement (ICE) in combating drug trafficking and illegal immigration issues in the state.

Governor Larry Rhoden commended the Highway Patrol for their professionalism and highlighted the importance of protecting the community from criminal activities. “We are committed to maintaining a safe and secure South Dakota,” he stated.

The operation was bolstered by an agreement signed earlier this year that granted Highway Patrol officers certain immigration enforcement powers, including warrantless arrests—an authority reinstated under the Trump administration after being discontinued during previous presidencies.

As of May 2025, 40 states have active agreements with ICE under the 287(g) program, which assists local law enforcement in immigration enforcement efforts. The investigation involved multiple agencies, including the DEA, FBI, Homeland Security Investigations, and local police departments.