"A deadly shooting occurred on Northern Arizona University’s Flagstaff campus early this morning, and the suspected shooter is in custody, according to a university spokesperson.

One person died and three others were wounded in the shooting, the spokesperson said.

It's unclear what sparked the shooting, which took place near Mountain View Hall, a dormitory that houses most of the campus' students involved in Greek organizations.

Residents in Mountain View Hall were asked to stay indoors, according to an emergency alert sent by the university."

[link to abcnews.go.com]