LAKE CITY, Fla. -

The Columbia County Sheriff's Office arrested a 29-year-old man on Wednesday on child pornography charges.

Matthew Christian Duffner (pictured below) of Lake City faces 12 counts of transmission of pornography by electronic device or equipment and 12 counts of possession of child pornography. He's being held on a total bond of $120,000.

The CCSO served a search warrant at 3839 East US 90 lot 1 in Lake City on Wednesday. The warrant resulted from an investigation into Internet child pornography that began after information was received by the CCSO that a local man had downloaded child pornography onto his personal computers.

CCSO detectives and deputies and Florida Department of Law Enforcement agents served the search warrant.

The CCSO is a member of the North Florida Internet Crimes Against Children Task Force, which investigates and prevents the exploitation of children through the Internet.

Anyone who knows or suspects Internet crimes against children can contact the CCSO at 386-719-2005 or Crime Stoppers at 386-754-7099. If a child is in immediate danger, call 911.