A 41-year-old Ottawa man has been charged in federal court with what prosecutors say was an attempt to arrange a sexual encounter with a minor.

U.S. Attorney Eric Melgren on Wednesday announced that the man was charged with traveling from Kansas to Tennessee between November 2003 and 2004 “for the purpose of engaging in a sexual act with a minor.” He also faces one count of using a telephone and a computer to solicit a minor to engage in sexual activity.

A grand jury indicted the man April 26.

It was one of four unrelated cases Melgren announced Wednesday to highlight what he said was an increased effort to prosecute online sexual predators.

If convicted, the man faces up to 15 years on the interstate travel charge, and five to 30 years on the charge of soliciting a minor to engage in sex.