The U.S. attorney's office says a Tenino man pleaded guilty Friday in federal court in Tacoma to possession of child pornography.

As part of a plea agreement, prosecutors are recommending a four-year prison term when 47-year-old James Donald Mobley is sentenced in March.

The U.S. attorney's office says the former teacher at Tenino Elementary School is one of 348 people arrested worldwide as part of the "Project Spade" investigation into a Toronto-based website.

Investigators found Mobley purchased child pornography from the company. He was arrested last January. A search of his computer found 650 photos and 45 videos of child pornography.