One person was killed and three others were injured in a shooting at Northern Arizona University in Flagstaff last night.
University spokesman Cindy Brown told CNN the shooting occurred at a parking lot outside the Mountain View residence hall at about 1:20 am.
A tweet from the university's official account reported the shooter was "stabilized" almost three hours later.
One of the last tweets to come from the university reported the "situation" was officially over.
Classes will reportedly resume as scheduled today.
The shooting comes just eight days after a shooter killed nine people at Oregon's Umpqua Community College.
Freelance reporter Mike Rosenberg shared a harrowing statistic this morning that puts the appalling amount of gun violence in the US in perspective.
President Obama is due to visit Roseburg, Oregon later today and address the families of the victims of the UCC shooting.
Update: The Washington Post reports the suspected gunman has been identified as 18-year-old NAU freshman Steven Jones.
NAU Police Chief Greg Fowler said Jones "produced a handgun and shot four other students" after two groups of students had gotten into an argument that turned physical.
All of the victims were male freshmen, according ABC15, but the conditions of the survivors remain unknown.
Fraternity Delta Chi told The Washington Post some of its members were "involved" in the shooting, but the Greek organization said it "was not a chapter-related incident."
Jones is not a member of the fraternity, and it is unclear if he knew the victims.
Citations: One killed 3 injured in shooting at Northern Arizona University (CNN), Northern Arizona University shooting (ABC15), Four shot — one fatally — at Northern Arizona University (The Washington Post), Northern Arizona University President: 'This will not be a normal day' after campus shooting (ABC15)