FLAGSTAFF, Ariz. (AP) - A shooting outside an Arizona university dormitory early Friday left one person dead, three others wounded and the suspected shooter in custody, a school official said.

The gunfire erupted in a parking lot at the Northern Arizona University, school public relations director Cindy Brown said.

The lot is just outside Mountainview Hall dormitory at the northeast side of the Flagstaff campus, she added.

Student Maria Gonzalez told The Associated Press that she at first suspected firecrackers.

“I was studying for an exam so I looked out the window and see two people running, and that’s when I realized they weren’t fireworks they were actually gunshots,” she said.

The first police call about the gunfire came in at 1:20 a.m. PDT.

Brown said she didn’t know what caused the shooting and also didn’t have any details about the suspect and victims, their conditions and whether they are students.

On its website, the university said that the campus was stabilized and the campus was not on lockdown.

“How am I supposed to feel safe where I’m learning,” Gonzalez said.

Brown said the wounded were taken to Flagstaff Medical Center, which said it couldn’t release any information on conditions.