UPDATE 2:02 p.m.:

After the shooter was identified as 18-year-old NAU freshman Steven Jones, photos from his personal social media accounts started to surface. Some of the photos feature Jones carrying a firearm, according to the New York Daily News:

UPDATE 11:40 a.m.:

Following a press conference this morning, further details regarding the fatal shooting at Northern Arizona University have started to emerge. Steven Jones, previously identified as an 18-year-old NAU freshman, reportedly "pulled out a gun and started shooting" during an argument in a parking lot next to Mountain View Hall. Colin Brough was fatally wounded in the attack, according to New York Daily News. Fellow students Nicholas Prato, Kyle Zientek and Nicholas Piring were reportedly injured.

UPDATE 10:03 a.m.:

The shooter is reportedly an 18-year-old student at Northern Arizona University named Steven Jones, according to the New York Times. The shooting appears to have been the result of a confrontation outside a residence hall early Friday morning. G. T. Fowler, campus police chief, told reporters that Jones opened fire after "two groups of male students were involved in a confrontation." The police were able to take Jones into custody after he stopped firing his weapon.

See original story below.

A suspected shooter has reportedly been detained after a fatal incident at Northern Arizona University in Flagstaff on Friday morning, according to university officials. Though reports are currently scarce, one person was killed and three others were apparently injured in the shooting:

"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," student Maria Gonzalez told the Associated Press. "How am I supposed to feel safe where I'm learning?"

A potential motive for the shooting has not been uncovered. Additionally, a university spokesperson tells CNN that it is not currently known whether the one confirmed fatality is the victim or the suspected shooter.

This story is developing.