Federal prosecutors announced charges Tuesday against a school volunteer in a widening child pornography investigation at a suburban Maryland elementary school that involves students ranging from 9 to 11 years old.

United States Attorney Rod Rosenstein said 22-year-old Deonte Carraway is charged with eight counts of federal violations for the production of child pornography, in addition to state charges.

The new charges detail allegations that Carraway engaged in sex acts with children, and also directed them to perform sex acts he recorded on video.

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