At least 9 people have been taken to a hospital, one in critical condition, after a knife and ramming attack at the campus of Ohio State University.

Campus officials urged students to take shelter and “Run – Hide – Fight.”

The attack was reported in Watts Hall, the material science and engineering building at the center of the of university’s campus in Columbus Ohio.

Initial reports suggested that the attack was a shooting. It has now been determined that there was no shooting, although a number of people were stabbed or run over.

The FBI is reportedly working with local law enforcement forces in the area.

Fox News has reported that the attacker was an 18 year old Somali man. He rammed his car into a group of people, then got out and began stabbing people with a butcher knife before being shot dead by a campus police officer.

OSU senior Anthony Falzarano, 22, said he was in class at the time of the attack.

"We heard a lot of sirens. I was in class and everyone got a text message at the same time for the emergency alert," he told CNN. "Someone said they heard popping right before we got the alert, but I didn't hear it. We are in a shelter-in-place right now in the building next door. "