Louisiana State University Campus (LSU photo/file)

BATON ROUGE, La. (September 18, 2012)--Thousands of students who live on the Louisiana State University campus in Baton Rouge, La. returned to their dorms Monday night and classes resumed Tuesday after a bomb threat that led to a campus-wide evacuation and a sweep through campus buildings.

The evacuation was ordered Monday after the bomb threat was called into a 911 center.

“A bomb threat has been reported on the LSU Campus. Please evacuate as calmly and quickly as possible,” a message on the university’s website said.

The school alerted all faculty, staff, and students shortly before noon Monday.

"We determined there was a need to evacuate the campus," said Associate Vice Chancellor Herb Vincent.

The LSU Emergency Operations Center instructed anyone on campus to evacuate as calmly and quickly as possible.

A central texting program that automatically alerts students to dangers on campus was used to notify the student body.

All classes and events on campus were canceled for the remainder of the day Monday because of the threat.

Capt. Doug Cain of the Louisiana State Police said state police bomb technicians were on the scene.

He said police are talking to their counterparts in states where university bomb threats were reported last week to determine whether there are similarities.

There was a bomb threat at the University of Texas in Austin on Friday that led to the evacuation of all buildings on the campus.

A search turned up no evidence of explosives.

Threats also led to evacuations Friday on campuses in North Dakota and Ohio, but as in Austin, no explosives were found.