FORT MILL — Drug agents arrested two people in Fort Mill this week and seized $63,000 worth of marijuana after a narcotics investigation uncovered shipments of high-grade marijuana from California.

Hieu Huu Ly, 38, of San Jose, Calif., and Thi Hanh Nguyen, 38, of Houston, each face three charges related to the incident, including conspiracy and marijuana trafficking, according to a report from the York County Multijurisdictional Drug Enforcement Unit.

Officers executed a search warrant at 7055 Ridgebrook Drive in Fort Mill on Tuesday afternoon after a package containing 6 pounds of marijuana arrived at the home.

Police said Ly and Nguyen attempted to drive away in a 2010 Lexus SUV with the marijuana after allowing the package to be delivered, but told police they had no knowledge of the contents, said Marvin Brown, commander of the drug unit.

Investigators determined that Nguyen asked her co-worker if she could have a package from California delivered to the co-worker’s Fort Mill home, Brown said. Nguyen’s co-worker agreed without realizing that narcotics were inside.

Ly flew from California to Charlotte, where Nguyen picked him up and they drove to the Fort Mill home, Brown said.

Before the arrests, officers used drug-sniffing dogs to determine the contents of the UPS package in Rock Hill. They then repackaged the drugs, Brown said, and shipped it to the home in a process officials called a “controlled delivery.”

“It’s not uncommon” for people to use their neighbors, friends and vacant buildings to ship and deliver drugs, Brown said, describing it as a growing trend.

Officials intercepted a package of 350 pounds of drugs being delivered to a home several years ago, Brown said.

York County agents also have developed networks with drug agents and shipping companies in other states. If agents pick up a package in St. Louis, Mo., that’s en-route to Rock Hill, York County agents will be notified so they can intercept the package and arrest the owners.

Also Tuesday, officers intercepted two additional packages scheduled for delivery Wednesday containing 12 additional pounds of high-grade marijuana, according to the report. Police also seized two boxes containing beer pong tables, plane tickets, hotel door cards and receipts, an Apple iPhone and iPad, a Samsung cellphone and $5,000 cash.

Both Ly and Nguyen were being held Thursday at the Moss Justice Detention Center in York. Ly’s bond was set at $35,000.

Anna Douglas 803-329-4068Jonathan McFadden803-329-4082