A 15-year-old St. Clair area girl was found dead Friday in her home.

Authorities are investigating the death as an apparent suicide.

Donna Jo Cooley was found by her father just before 6:30 a.m. at a home on Louise Drive, Franklin County authorities said.

The home is located in the White Acres subdivision off Virginia Mines Road

Cooley was a sophomore at St. Clair High School. The school was notified of the girl’s death Friday morning.