Steven Jones, freshman at Northern Arizona University, shot four male students, killing one, after a confrontation in a parking lot at the university, according to CNN.

Northern Arizona University, in Flagstaff, Arizona, tweeted “#NAUAlert: Reported shooting at NAU Flagstaff campus. Shooter in custody. Mtn View Hall residents stay indoors. More details to follow.” The university released the tweet Friday, Oct. 9, at 2:29 a.m.

Police apprehended the suspect, Steven Jones, a freshman at NAU, according to a statement from NAU News.

“Two separate student groups got into a confrontation,” NAU Police Chief Gregory T. Fowler told reporters at a morning press conference. “The confrontation turned physical, and one of our students, Steven Jones, 18 years old, produced a handgun, and he shot four of our other students. One of our students is deceased, the other three are being treated at the Flagstaff medical center.”

This is one of over 40 school shootings in the year of 2015, according to The New York Times.