NORFOLK, Va. (WVEC) — Norfolk State University Police are investigating an assault on campus.

NSU spokesperson Stan Donaldson says a professor was assaulted while he was taking attendance in class. Donaldson says a masked man barged into the classroom and pushed the professor to the ground.

13News Now has learned the professor is the Interim Dean of the Business School. A source says another student unsuccessfully ran after the suspect in hopes of tracking him down.

It happened around 5 p.m. Wednesday at Brown Hall. Police are going through surveillance videos on campus, to see if they can identify the suspect. At this time, they do not know if the suspect is a student or not.

The professor was unharmed, and police believe it was an isolated incident. The suspect was last seen wearing a white mask and dark clothing, and heading east, toward the West Cafe. Few other suspect description details were released.

It’s unclear what led to the attack.

If you know anything, you’re asked to call NSU police at 757-823-8102 or 757-823-9000.