Three Twin Cities women were intercepted Tuesday at Chicago O'Hare International Airport, allegedly carrying more than $3 million worth of heroin and opium concealed in bags of tea leaves.
The women and drugs were believed to be on their way to Minnesota, said Kent Bailey, head of the Minneapolis Drug Enforcement Administration (DEA) office.
"We do have opium coming in here on a regular basis," he said, adding that Chicago is a common stopover.
Chicago police and U.S. Customs are investigating Tuesday's case, but Bailey's office received an internal memo about the arrests in light of the drug's tie to Minnesota and the state's Hmong community, where Bailey nearly always, if not exclusively, sees its distribution.
Pa Yang, 57, and Mai Vue Vang, 58, both of St. Paul, and True Thao, 52, of Brooklyn Center, were arrested by agents after they left an international flight from Japan at O'Hare's Terminal 5, Chicago police said.
The women passed through customs, claimed their bags and were pulled aside for additional screening, said public affairs officer Kris Grogan.
Agents found 470 packets of a brown powdery substance concealed inside clear plastic bags of tea leaves. The powder tested positive for opium.
The combined weight of the contraband was 31.5 kilograms (about 70 pounds), according to Chicago police.