Princeton University lifted its evacuation order at 6:25 p.m. Tuesday evening, after announcing the school-wide closure due to a bomb threat earlier in the day.

The University conducted a campus-wide explosive search after someone called the school alleging multiple bombs were hidden around campus, but found no explosives on campus. The Princeton Office of Communications statement said law enforcement at the local and national levels assisted in the search.

Students, faculty and staff were sent home, and those students who could not make the trip headed to various locations such as the Princeton Public Library.

Since reopening campus, Princeton’s operations have returned to normal.

Read the full text of the statement below.

Princeton University reopened its campus at 6:25 p.m. Tuesday, about eight hours after students, faculty and staff were evacuated because of a bomb threat.

The University received a phone call from someone who said multiple bombs were placed throughout campus at unspecified locations. After determining that the threat was credible, University officials ordered the campus evacuated. Faculty and staff were sent home; students were told to go to public places in the town of Princeton, including the Princeton Public Library, the Princeton Arts Council and the Nassau Inn.

The University’s Department of Public Safety worked with multiple law enforcement agencies to investigate, including the Princeton Police Department, Princeton First Aid and Rescue Squad, Mercer County Sheriff’s Department and Prosecutor’s Office, Monmouth County K-9 unit, New Jersey State Police, New Jersey Transit Police, the Federal Bureau of Investigation and federal Bureau of Alcohol, Tobacco, Firearms and Explosives.

Bomb-sniffing dogs were brought in from law enforcement agencies and searched campus in a coordinated effort with University staff members. No explosive devices were found. The University takes all threats to the safety and well being of its community members and visitors seriously.

The Department of Public Safety will continue to work with law enforcement agencies as they investigate the source of the threat. The campus bomb threat was one of similar threats received in other locations elsewhere in the United States on Tuesday.

University operations have returned to normal, although anyone involved in events scheduled Tuesday evening should check with event organizers to see if they are still on.

TigerTransit will resume its normal schedule Wednesday morning.

JULIA ZORTHIAN