313/ThinkStock

SUN VALLEY, Idaho (AP) — A former teacher at a Sun Valley private school has been charged with felony sexual abuse of a child under 16.

Sun Valley police say Kevin Carter Donaldson had a sexual relationship with a boy in September while Donaldson was employed as a seventh-grade teacher at Community School.

KTVB TV reports the victim's mother found inappropriate photos of Donaldson and text messages between him and the victim. Police say the victim told them he met the teacher on Grindr, an app for gay men. Donaldson was arrested and fired from his teaching job earlier this week.