PHILADELPHIA (CBS) – For the second time in less than a month, U.S. Customs officers have seized more than 100 pounds of khat near Philadelphia Airport.

Officials from Customs and Border Protection (CBP) seized a combined 167 pounds of khat on Monday that arrived from France inside two wooden crates.

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The crates, which were on their way to Minnesota, were x-rayed and revealed a green leafy plant instead of the machinery parts they claimed to contain.

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Officials say they shipped the parcels to the Minneapolis Police Department, who arrested Abdirazak Barre Aden, 35, on narcotics charges.

Khat is a leafy green plant that’s typically grown in the Arabian Peninsula and chewed for its stimulant effect. Its principal components are considered controlled substances in the U.S.

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Earlier this month, officials seized more than 100 pounds of khat at the mail facility located near Philadelphia International Airport.