Yesterday morning parents in Italy, Texas, a town roughly 45 minutes south of Dallas, received a text message from the School Superintendent, and a parent’s worst nightmare– about a high school shooting.

District superintendent Lee Joffre sent a mass text, stating:

We have had an active shooter incident at the high school campus this morning. The shooter is in custody and law enforcement has control of the scene. There has been one victim that has been transported to the hospital. All junior high and high students are safe and will be transported by bus to Stafford Elementary for dismissal after police approval.

The shooting occurred at around 8 am CT in the school cafeteria. The Associated Press reported that there were no confirmed injuries and specific details were unclear. Local reports indicated that a 15-year-old girl had been shot and her condition was unknown. The shooter is a 16-year-old boy and it remains unclear if he knew her.

The shooter, who is in police custody, is described by a fellow student as having a “history of aggressive actions.”

Cassie Shook, a 17-year-old junior, told the Associated Press (AP) that she was angry when she found out who the suspect was because she’d complained about him at least twice to school officials, including the vice principal.

“This could have been avoidable,” she said. “There were so many signs.”