A man armed with a shotgun opened fire on Thursday at a small Christian college in Seattle, killing one person and wounding two others before he was subdued by a group of students and arrested, Seattle police and hospital officials said.
A fourth person was injured in the struggle with the gunman, police said.
Watch: Students help stop gunman during US campus shooting
The Seattle Police Department said via Twitter that Aaron Ybarra, 26, had been booked into King County Jail for the shooting at Seattle Pacific University.
The lone suspect, who was not a student, entered an academic building of the university in the late afternoon and shot three people, police said.
He was disarmed as he paused to reload his gun and was pepper-sprayed by a student security guard.
"Other students jumped on top of them, and they were able to pin the shooter to the ground until police arrived minutes later," police captain Chris Fowler told reporters on the scene.
Medics wheel away a person shot at Seattle Pacific University, in Seattle. A lone gunman armed with a shotgun opened fire in a building at a small Seattle university, fatally wounding one person before a student subdued him with pepper spray as he tried to reload, Seattle police said. (AP Photo)
Americans are engaged in a protracted debate over gun control regulations after a series of shootings in public places such as schools and theaters.
On May 24, a 22-year-old gunman killed six people before taking his own life in a rampage across a California college town.
One eyewitness in Seattle, Chris Howard, a 22-year-old junior, told Reuters he was in a classroom when one of the male victims rushed in bleeding from the neck and told students to lock the doors.
Stepping outside the classroom moments later, Howard said he saw the gunman lying on the floor with the student security monitor on top of him, surrounded by bullet shells, and saw a second victim with a tourniquet tied around a bleeding arm, being assisted by another student.
Students pray together after a shooting on campus at Seattle Pacific University in Washington. A man armed with a shotgun opened fire at a small Christian college in Seattle, killing one person and wounding three others before he was subdued by a group of students and arrested, Seattle police and hospital officials said. (Reuters)
He was armed with a gun and a knife and extra ammunition, police said.
The suspect could face a murder charge, Fowler told an evening news conference.
A representative of Harborview Medical Center in Seattle said four patients from the shooting were brought to the hospital and that one, a man in his 20s, had died.
Two other men, aged 22 and 24, were listed in satisfactory condition, and a 20-year-old woman was listed as critical and undergoing surgery, the hospital official said.
One of the men suffered pellet wounds to his neck and chest and the other suffered minor injuries, police said.
NO MOTIVE IMMEDIATELY CLEAR
Further details of the shooting in the upscale Seattle suburb of Queen Anne, a residential neighborhood, were not immediately clear, and authorities did not offer an explanation for any motive behind the gun violence.
Another student, Blake Oliveira, 21, who was taking a physics course in Otto Miller Hall at the time, told Reuters he heard a gunshot outside the classroom, followed by the sound of running footsteps, which he presumed to be the gunman.
His professor instructed the students to stay put in the classroom, and the door was locked, Oliveira said.
Seattle Pacific University is a Methodist liberal arts college about 4 miles (6.4 km) north of Seattle's downtown, with about 4,000 students enrolled.
The college website said students are subject to disciplinary action for such behavior as extramarital sex or homosexual activity and for the possession or use of alcohol.
Students could be seen embracing and otherwise consoling one another on campus, some crying as they recounted hearing a gunshot. An evening prayer service was being held at a campus church.
"We're a community that relies on Jesus Christ for strength and we'll need it at this time," said Seattle Pacific University President Daniel Martin.