An ex-coach at a renowned Iowa youth gymnastics academy known for producing top Olympians was arrested for having a trove of child pornography years after he was accused of sexually assaulting multiple young athletes.

Sean Gardner is facing federal charges for child pornography, alleging he used a hidden camera to record underage gymnasts in Mississippi.

Last week, more than three years after being suspended from coaching, the FBI arrested Sean Gardner, 38, on a federal child pornography charge.