A 62-year-old St. Louis man who was arrested after investigators say he traveled to Denver to have sex with two minors has been sentenced to 11 years in federal prison.

The U.S. Attorney's Office says Darwin Gilbert Gowen was sentenced Tuesday and must serve 10 years of supervised release following his prison term. KMGH-TV reports he previously pleaded guilty to traveling with the intent of engaging in illicit sexual conduct.

Federal authorities arrested Gowen at Denver International Airport on June 22, 2014.

The U.S. Attorney's Office says a special agent with Homeland Security Investigations posed on the Internet as a 37-year-old single mother of two daughters, ages 15 and 11. Gowen was accused of arranging to come to Colorado to have sex with the mother and her children.

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