SAN DIEGO (AP) — A California deputy attorney general has been charged in San Diego with possession of child pornography.

The San Diego Union-Tribune reports Raymond Joseph Liddy pleaded not guilty and was released on $100,000 bond. The attorney general's office said Wednesday it is aware of the matter and that the 53-year-old Liddy was placed on administrative leave.

The newspaper reported that the complaint said an electronic service provider sent a tip to the National Center for Missing and Exploited Children in January that a user had uploaded an image that appeared to be child porn. A month later another provider sent a similar tip to the organization.

Local and federal authorities said they traced the activity to Liddy's home, where a search uncovered photos on a computer and thumbdrive of minors engaged in sexual conduct.

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Information from: The San Diego Union-Tribune, http://www.utsandiego.com