AUSTIN, Texas — Thousands of people streamed off the University of Texas campus Friday after a phoned-in bomb threat prompted an evacuation of all buildings and officials warned students and faculty to "get as far away as possible." No bombs had been found by midmorning.

The university received a call about 8:35 a.m. from a man claiming to be with al-Qaida who said he had placed bombs all over the 50,000-student Austin campus, according to University of Texas spokeswoman Rhonda Weldon. He claimed the bombs would go off in 90 minutes and all buildings were evacuated at 9:50 a.m. as a precaution, Weldon said.

North Dakota State University in Fargo, N.D., also ordered a campus evacuation after a morning bomb threat, but it was unclear whether the two threats were related. NDSU issued a statement shortly before 10 a.m. telling all employees and students to leave 14,000-student campus within a half-hour.