A central Kansas man has pleaded guilty to using a 9-year-old girl to produce child pornography after an investigation that began earlier this year in Australia.

A central Kansas man has pleaded guilty to using a 9-year-old girl to produce child pornography after an investigation that began earlier this year in Australia. The U.S. Attorney's office says 50-year-old Philip Grigsby, of Marquette, pleaded guilty Thursday to eight counts of sexual exploitation of a child. He also pleaded guilty to one count each of possessing child porn and unlawful possession of a firearm as a felon. An Australian investigation led to Grigsby after child pornography found on an Australian man's computer was traced back to Kansas.