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COLUMBUS, Ohio — A suspect attacked several people at Ohio State University on Monday, sending at least eight to local hospitals and prompting a campus-wide lock down, authorities said.

Authorities and OSU President Dr. Michael Drake held a press conference at just before 1 p.m. saying they believe there was only one suspect and that a motive is not yet known.

**Read more details from the press conference in the blog at the bottom of this page**

Columbus Fire spokeswoman Rebecca Diehm said one victim is in critical condition. The others are in stable condition.

Ohio State University said in a statement:

“A suspect has been shot and reported deceased. Victim injuries include stab wounds, injury by motor vehicle and other injuries that are being evaluated.”

The motive for the attack was not immediately known.

Ohio State Police tweeted at around 11:30 a.m. that the shelter in place was lifted and that the “scene is now secure.”

UPDATE 1/2 : Shelter in Place lifted. Scene is now secure. ALL classes are canceled on Columbus campus for the remainder of the day. — OSU Police (@OSUPOLICE) November 28, 2016

UPDATE 2/2: Area around 19th & College Ave. is closed. List of buildings closed and additional information at https://t.co/5eIPORv9us — OSU Police (@OSUPOLICE) November 28, 2016

As the chaos unfolded, university officials originally reported an active shooter incident at Watts Hall.

It’s possible the gunshots heard were those of police trying to stop the attacker, a federal law enforcement official said.

Investigators believe the assailant also used a car at the beginning of the attack, and the entire attack happened outside.

OSU student Jacob Bower, 20, said he saw a man pull a knife outside between the Koffolt Laboratories and Watts Hall.

“He pulled a large knife and started chasing people around, trying to attack them,” Bower told CNN. He said it appeared to be a large kitchen knife.

“Luckily there were so many people, he couldn’t focus on one target. I didn’t see anyone get stabbed, but I saw the police officer take down the stabber. He waited till everyone was clear, and the stabber clearly wasn’t stopping. (It) took three shots to take him down. (The) stabber had a crazy look in his eyes.”

When asked if the suspect yelled or said anything during the attack, Bower told CNN: “He was completely silent. Which was very creepy. Not even when he was shot (by police).”

“The cop that subdued the guy with the knife saved so many lives today.”

OSU Emergency Management first tweeted about the ‘active shooter’ situation at just before 10 a.m. Monday:

Buckeye Alert: Active Shooter on campus. Run Hide Fight. Watts Hall. 19th and College. — OSU Emergency Mngmnt (@OSU_EMFP) November 28, 2016

Buckeye Alert: Continue to shelter in place. Avoid area of College. More information to follow. — OSU Emergency Mngmnt (@OSU_EMFP) November 28, 2016

Watts Hall is the university’s materials science and engineering building.

Stick with Fox 8 and Fox8.com for more on this developing story.

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