Students at North Dakota State University in Fargo and the University of Texas in Austin have been ordered to evacuate their respective campuses this morning because of bomb threats.

AUSTIN, Texas — Thousands of people streamed off university campuses in Texas and North Dakota on Friday after phoned-in bomb threats prompted evacuations and officials warned students and faculty to get away as quickly as possible. No bombs were found on either campus by early afternoon and it was not clear whether the threats were related.

The University of Texas received a call about 8:35 a.m. from a man claiming to be with al-Qaeda 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.

The rest here