New details continued to emerge Monday in a chilling assault at the Ohio State University campus in Columbus. Here is what we know now:
An assailant drove over a curb near an engineering building Monday morning around 10, ramming his car into a group of pedestrians. The man jumped out and began stabbing people with a butcher knife before being shot to death by a university police officer who arrived on the scene within a minute of the attack.
Multiple media reports are describing the suspect as an 18-year-old native of Somalia.
Nine people were hurt, one critically. The injuries included stab wounds, cuts and injuries from a motor vehicle, authorities said.
Did the suspect have a gun?
There were conflicting reports early in the day whether a gun was involved after the university issues a series of tweets warning students of an "active shooter."
University Police Chief Craig Stone said it did not immediately appear that the attacker used a gun. The alert, however, apparently was sent after the suspect was fatally shot, which could have spurred confusion about a gun. Stone said the assailant used a butcher knife after plowing into the pedestrians with his car.
Was this a terror attack?
Columbus Police Chief Chief Kim Jacobs said the assault could have been an act of terror. "That's why our federal partners are here and helping," she said. However, authorities are continuing to investigate. Homeland security adviser Lisa Monaco briefed President Obama on the incident, and FBI agents in Columbus were assisting with the investigation.