RAPID CITY (KELO) — A former Rapid City gymnastics coach pleaded not guilty Friday to federal child pornography charges.

Prosecutors say 25-year-old Hayden Sengua possessed more than 14-thousand images and videos of child pornography dating back to 2018.

Prosecutors say some of the images included children he may have coach.

Sengua worked at Just Gymnastics in Rapid City until May of 2024.

He previously worked as a gymnastics coach in Oregon.