Evan H. Vollerthum, a caddie on the newly-named Korn Ferry Tour, was arrested Monday for human trafficking and attempting to sexually exploit a child.

Vollerthum was taken into custody by US Immigration and Customs Enforcement’s (ICE) Homeland Security Investigations in Topeka, Kansas, according to an ICE news release. Topeka is about two hours away from this week’s Wichita Open.

Shawnee County Jail (Kansas) records state Vollerthum is being held in connection with one count of aggravated human trafficking involving hiring a child 14 or older to engage in sexual acts, and attempted commercial exploitation of a child involving hiring a person under 18 for a sex act.

Vollerthum had been working this season with former PGA Tour player Brad Fritsch. According to Myrtle Beach Online, Fritsch and Vollerthum split three weeks ago, and the 35-year-old Vollerthum was scheduled to caddie this week for Joseph Bramlett.

A resident of Naples, Florida, Vollerthum got his start as a touring caddie with Scott McCarron. Working as a fill-in at Caves Valley Golf Club outside Baltimore, Vollerthum helped McCarron win the 2017 Constellation Senior Players Championship.

Vollerthum is being held at the Shawnee County Department of Corrections on $500,000 bond, according to jail records. The ICE release said the criminal investigation is ongoing.