Authorities evacuated the buildings at St Edward’s University today after a threatening note was found, a school official said.
The bomb threat came a day after a Virginia Tech student killed at least 30 people locked inside a classroom building in the deadliest shooting rampage in modern US history.
Police officers had secured the perimeter of the Texas campus and were searching the buildings, university spokeswoman Mischelle Amador.
She declined to say where the note was found and said its contents were “non-specific”.
Faculty, staff and all other students were asked to stay away from the campus, and morning and afternoon classes were cancelled.
About 5,200 undergraduate and graduate students are enrolled at the Catholic university south of downtown Austin.
Ms Amador said the university’s reaction was not influenced by yesterday’s attack at Virginia Tech.