911 calls from OSU campus attack released: 'I think this is some type of terrorist attack'

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Numerous 911 calls have described a frantic moment on campus as terrified students and faculty reported a student mowing down people with a car and stabbing others at Ohio State University Monday.

Read: Pictured: Hero Cop Who Stopped Knife-Wielding Attacker at Ohio State University

The calls were released by authorities hours after Abdul Razak Ali Artan, 18, launched his rampage.

"I think this is some type of terrorist attack," one person told the 911 operator.

"There's a guy, crashed his car into a bunch of people and ran out with a knife chasing down people," another said.

See photos from the scene:

9 PHOTOS
Images from the scene at Ohio State University
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Images from the scene at Ohio State University
COLUMBUS, OH - NOVEMBER 28: Police keep the roads closed around Watts Hall following an attack on the campus of the Ohio State University on November 28, 2016 in Columbus, Ohio. At least nine people were injured when a suspect reportedly drove into a crowd of pedestrians and slashed several people with a knife before being fatally shot by university police. (Photo by Kirk Irwin/Getty Images)
COLUMBUS, OH - NOVEMBER 28: Police keep the roads closed around Watts Hall following an attack on the campus of the Ohio State University on November 28, 2016 in Columbus, Ohio. At least nine people were injured when a suspect reportedly drove into a crowd of pedestrians and slashed several people with a knife before being fatally shot by university police. (Photo by Kirk Irwin/Getty Images)
Law enforcement officials are seen outside of a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on November 28, 2016. Eight people were injured when an attacker apparently drove into a crowd at Ohio State University on Monday, triggering an hours-long lockdown before authorities declared the campus secure. Law enforcement shot and killed one suspect, according to local television station WBNS, which reported that police led two people out in handcuffs from a garage they had surrounded on the university's main campus in Columbus. / AFP / Paul Vernon (Photo credit should read PAUL VERNON/AFP/Getty Images)
Law enforcement officials are seen outside of a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on November 28, 2016. Eight people were injured when an attacker apparently drove into a crowd at Ohio State University on Monday, triggering an hours-long lockdown before authorities declared the campus secure. Law enforcement shot and killed one suspect, according to local television station WBNS, which reported that police led two people out in handcuffs from a garage they had surrounded on the university's main campus in Columbus. / AFP / Paul Vernon (Photo credit should read PAUL VERNON/AFP/Getty Images)
A law enforcement official motions for people to leave the area outside of a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on November 28, 2016. Eight people were injured when an attacker apparently drove into a crowd at Ohio State University on Monday, triggering an hours-long lockdown before authorities declared the campus secure. Law enforcement shot and killed one suspect, according to local television station WBNS, which reported that police led two people out in handcuffs from a garage they had surrounded on the university's main campus in Columbus. / AFP / Paul Vernon (Photo credit should read PAUL VERNON/AFP/Getty Images)
Law enforcement officials are seen searching in a parking garage on the campus of Ohio State University as they respond to an active attack in Columbus, Ohio, on November 28, 2016. Eight people were injured when an attacker apparently drove into a crowd at Ohio State University on Monday, triggering an hours-long lockdown before authorities declared the campus secure. Law enforcement shot and killed one suspect, according to local television station WBNS, which reported that police led two people out in handcuffs from a garage they had surrounded on the university's main campus in Columbus. / AFP / Paul Vernon (Photo credit should read PAUL VERNON/AFP/Getty Images)
COLUMBUS, OH - NOVEMBER 28: Ohio State University President Michael Drake addresses the media outside of the Wexner Medical Center on the attacks that took place on campus earlier in the day on November 28, 2016 in Columbus, Ohio. At least nine people were injured when a suspect reportedly drove into a crowd of pedestrians and slashed several people with a knife before being fatally shot by university police. (Photo by Kirk Irwin/Getty Images)
COLUMBUS, OH - NOVEMBER 28: Columbus Mayor Andrew Ginther (R) listens as Ohio State University President Michael Drake addresses the media outside of the Wexner Medical Center on the attacks that took place on campus earlier in the day on November 28, 2016 in Columbus, Ohio. At least nine people were injured when a suspect reportedly drove into a crowd of pedestrians and slashed several people with a knife before being fatally shot by university police. (Photo by Kirk Irwin/Getty Images)
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Artan borrowed a car from a family member Monday when he started his rampage. He used the car to jump a curb and strike pedestrians walking to class.

He got out of the car, reportedly wielding a butcher knife, and slashed several people in the area, officials said.

None of the injuries were considered life-threatening, though at least two of the pedestrians hit by the vehicle underwent surgery.

Read: Man Shot and Killed His Wife, 8-Week-Old Baby, and Mother Before Turning Gun on Himself

Frightened students shot video out of a classroom window after the suspect was shot dead by OSU police officer Alan Horujko, 28. Horujko joined the OSU police force in 2015 after graduating from the school.

"I heard someone yell, 'he's got a knife,' and I saw a guy with a big-ass knife just chasing people around," OSU student Jacob Bowers told NBC News. "When I saw that, I grabbed all my stuff and started running."

Bowers added that "the man was going insane" prior to being gunned down by Officer Horujko.

See more reactions to the attack:

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Ohio State active shooter
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Ohio State active shooter
Buckeye Alert: Active Shooter on campus. Run Hide Fight. Watts Hall. 19th and College.
Buckeye Alert: Continue to shelter in place. Avoid area of College. More information to follow.
https://t.co/cW1edgdMWf
The police shot the person in my picture so I'm assuming that it was a shooter. People said that he had a knife
Well I'm in lockdown for an active shooter that I heard loud and clear about 2-3 buildings down.
Scary scene at Ohio State. There is currently an active shooter on campus, please help spread the word. #OhioState https://t.co/fUBD8SIP4b
Search for @OhioState shooter now focusing on possible parking garage according to scanner reports. Multiple Nbc4 crews heading there now.
@NickGLange13 heard 5 or 6 gunshots + i believe someone was on the ground. Can see it from my dorm
On the police scanner: there is a suspect package (bomb) do not go outside
Everyone stay safe -- Monitoring this situation closely. Thoughts and prayers with everyone on campus. https://t.co/GbDkiwfi9D
BREAKING: at least one person has been transported -- unsure of what injuries following reports of shots fired on OSU's campus.
UPDATE: ABC-6 reports three people were shot on the OSU campus.
I'm ok. Man crashed car through our group of people out for a fire alarm and got out with a knife and gun. Please be safe OSU.
From the watts building director https://t.co/PXTXVrYT5D
Backpack being inspected by bomb squad at Ohio State. Courtesy: Bobby Griffith https://t.co/AjBL8QOqXu
BREAKING: 7 people have been transported per Columbus Fire from OSU's campus following reports of an active shooter on campus.
One @OhioState professor tells @NBC4 a colleague was slashed with a machete on the OSU campus in Watts Hall. #Breaking
Ohio's thoughts and prayers go out to the Ohio State community. Be safe, listen to first responders. https://t.co/5qtfH3Fb6d
I'm safe in a barricaded room. If you're on campus, get in a room and stay safe. https://t.co/Gaw7gjTx6w
FBI, @ColumbusPolice and others assisting @OSUPOLICE who are leading this active shooter response. Continue to monitor for updates.
Columbus police confirm that a suspect is dead. #breaking
Praying for all students on @OhioState campus!! Please find safely asap!! 🙏.
@nbc4i reports SWAT team brought two men out of garage in handcuffs. @wkyc https://t.co/p9Z5ePsGID
UPDATE 1/2 : Shelter in Place lifted. Scene is now secure. ALL classes are canceled on Columbus campus for the remainder of the day.
UPDATE 2/2: Area around 19th & College Ave. is closed. List of buildings closed and additional information at https://t.co/5eIPORv9us
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Watch: Ohio University Attacker Is 18-Year-Old American Resident From Somalia

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