Credit: Morgue File

Principal Kevin Lein of Harrisburg High School was shot and lightly wounded in a shooting at the school, on Wednesday in South Dakota.

Lein suffered a flesh wound in the morning attack, according to Superintendent James Holbeck. He is in stable condition.

All students were safe, but the school was locked down. The high school has approximately 635 students.

Parents were asked to stay away but a handful of parents had gathered outside one entrance. Access to the school from a main thoroughfare was shut off, with a sheriff’s deputy standing guard nearby with a rifle, according to IdahoStatesMen. 

Harrisburg, about 10 miles south of Sioux Falls, has a population of about 5,000.

A student who was suspected in the shooting is in custody, according to Lincoln County Deputy State’s Attorney Ross Wright.