Three universities responded to threats of bombs or reports of suspicious packages on Monday by shutting down or quarantining affected parts of the campuses.

Oliver Darcy of Campus Reform summarizes the reports:

Among these were San Francisco State University, Arizona State University, and the University of Iowa.

In each instance, however, local police ultimately cleared the school of the perceived threats.

San Francisco State University

Campus police closed and evacuated the school’s Creative Arts building after learning of a bomb threat Monday morning.

Administrators later notified students via Twitter the building had been deemed safe to enter.

Arizona State University

In Arizona, a passerby noticed a suspicious package on Monday located near the Arizona State University campus. The immediate area was apparently closed as local police and the bomb squad responded.

Lt. Scott Smith, spokesman for the Tempe Police Department, told azcentral.com that police determined the package was not threatening.

Iowa State University

An employee sorting mail at Iowa State University reported a suspicious package to police.

The bomb squad responded to the call and concluded the package possessed no threat. It was found to contain a box of tea, some ginger, and a greeting card.