A 32-year-old man is facing child pornography charges following a three-month undercover investigation.

Members of the OPP child sexual exploitation unit, technological crime unit and the Oxford County OPP executed a search warrant on Wednesday at a Tillsonburg residence.

Police say they seized a computer system and external media which contained images of child sexual abuse.

The Tillsonburg man is charged with two counts of possession of child pornography and one count of accessing child pornography.

The accused will appear for a bail hearing at the Ontario Court of Justice in Woodstock on Sept. 22, 2015.

The investigation is ongoing.