MINNEAPOLIS  — Authorities said they’ve seized more than 30 pounds of opium powder found in a passenger’s luggage at Minneapolis-St. Paul International Airport.

U.S. Customs and Border Protection said in a news release that officers found the substance in the bag of a 35-year-old woman arriving from Laos via Tokyo on Friday. The agency said Customs and Border Protection officers opened a packet listed as green tea mix and found a powder that tested positive for the presence of opium.

According to the agency, 33.5 pounds of opium was seized.