WICHITA, Kan. (AP) – A Wichita man admits that he collected more than a million images of child pornography.

In a plea deal Tuesday, 47-year-old Matthew Alter pleaded guilty to one count of possession of child pornography.

Prosecutors said police began investigating Alter after police in Italy notified them that a computer user in Kansas was accessing a child porn website.

Investigators followed an electronic trail to Alter’s home in Wichita, where they found more than one million images of pornography involving children from 1 to 12 years old. Prosecutors say Alter collected child pornography for 11 years.

The Wichita Eagle reports that sentencing is set for April 16. He faces a maximum penalty of 10 years in federal prison and a fine up to $250,000.