Officials said the complex, called the Knight Management Center, will be closed all Friday and the 700 or so affected employees have been sent home.
University officials first reported the scare at 10:48 a.m. via emergency.stanford.edu, an emergency alert system.
The area around Arguello Road, Campus Drive and Serra Mall remains closed, but the rest of the campus is open this afternoon, university officials said.
Classes in the business school are not in session Friday, university officials said.
Out of abundance of caution, the Graduate School of Business has been evacuated while police search the area: http://t.co/s6EEtAI1gZ— Stanford University (@Stanford) August 14, 2015
GSB remains closed while police search the area. About 700 faculty & staff affected, but classes are not in session: http://t.co/6UC4FkGRRM— Stanford University (@Stanford) August 14, 2015
Police have completed an initial sweep of half of the buildings in the GSB complex after a bomb threat this morning: http://t.co/4Ve4VIrjtz— Stanford University (@Stanford) August 14, 2015