A 19-year-old Edmond man is accused of engaging in sex acts with children while volunteering in Kenya this spring.

Matthew Lane Durham was charged late Friday in Oklahoma City federal court with four counts of traveling to engage in illicit sexual conduct.

Lane is accused of committing the acts with four to 10 children of both sexes, according to the probable cause affidavit. The children range in age from 4 to 9 years old.

At least one of the children is HIV positive, records show.