Man in Ohio State University knife attack shot dead
A man ploughed his car into a group of pedestrians at Ohio State University and then began stabbing people with a butcher knife before he was shot and killed by an officer, campus police said.
Nine people were injured, one critically, and Columbus Police chief Kim Jacobs said police were looking into whether it was a terrorist attack.
Numerous police vehicles and ambulances converged on the 60,000-student campus, and authorities blocked off roads.
Ohio State Police chief Craig Stone said the attacker drove over a kerb outside a classroom building and an officer who was nearby shot the driver.
A 'shelter-in-place' warning was lifted about an hour-and-a-half later and the campus was declared secure after police concluded there was no second attacker, as rumoured.
At least two people were being treated for stab wounds, four were injured by the car and two others were being treated for cuts, university officials said.