LYON COUNTY – Law enforcement authorities in Lyon County are investigating a suspect on drug and counterfeit money charges.

Just after 3:30 a.m. Monday, Lyon County Sheriff’s Deputies stopped a vehicle on Interstate 35 just before the Kansas 99 exit for speeding.

During the investigation, deputies located approximately $6,000 in counterfeit U.S. currency, a printer and other property, according to a social media report.

Deputies arrested the driver, Keith Medlock, 33, Kansas City, and transported him to the Lyon County Jail for possession of marijuana, outstanding warrants, and the counterfeit currency.

The U.S. Secret Service is assisting with the investigation.