A Catholic priest who worked at a Detroit high school faces at least 10 years in prison after pleading guilty to a child pornography charge.

The Rev. Richard Kurtz appeared in Detroit federal court Wednesday and admitted transporting child porn to Chicago in 2011.

Investigators say that Kurtz also secretly recorded video of hockey players while they changed clothes in the late 1990s. They were students at University of Detroit Jesuit High School, where he was a chemistry teacher for years.

Other priests found the video among his possessions after Kurtz was charged with sexually assaulting a student on a trip to Colorado. The sexual assault in Colorado happened in 2001, deputies said.

The 69-year-old Kurtz will return to court for his sentence on July 14. His plea agreement calls for a minimum of 10 years in prison.