A Nigerian man nabbed at Washington Dulles International Airport with heroin pellets in his abdomen pleaded guilty to drug charges this week, making him the second man convicted in such a case in the past month.

Yomade Aborishade, 46, pleaded guilty in federal court in Alexandria to attempting to import a controlled substance.

He was arrested after he flew into Dulles from Ghana on March 30. Aborishade ingested 100 pellets that weighed 1.8 kilograms, or just less than four pounds, according to plea documents. Customs and Border Protection has estimated the street value of the heroin at about $129,000.

Sentencing is scheduled for Aug. 19.

Ebodor F. Okenwa pleaded guilty in late to a similar scheme, admitting that he swallowed more than three pounds of heroin pellets.