Virginia Tech police are investigating written messages on YouTube that threaten a mass shooting at the university, but believe there is no direct threat to the school.
Police informed students and faculty of the investigation in an e-mail late Wednesday night, saying that state police and the FBI are assisting.
University spokesman Mark Owzcarski says authorities believe the threats may have originated in Europe.
A YouTube user created a Web page under the name "nextvirgtechkiller" that included the statements "the massacre is incoming" and "next massacre is incoming." The page is no longer available.
Virginia Tech was the scene of the worst mass shooting in modern U.S. history in April 2007. Student Seung-Hui Cho killed 32 students and faculty members on campus, then took his own life.