DURHAM, N.C. (AP) — Police say they found nothing suspicious after a bomb threat was made about the student center at Duke University in Durham.

Duke spokesman Mike Schoenfeld said Durham police received an anonymous call early Tuesday and notified campus police.

Police evacuated the Bryan Center and searched the building.

The school says normal operations at the building resumed shortly after 9 a.m.

Schoenfeld says only a few people were in the building when the threat was made. The school had sent email and text messages to faculty, staff and students telling them to avoid the area until the building was cleared.

Classes are being held as scheduled.